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NASA Images Help Explain Eating Habits of Massive Black Hole
Thu, 09 May 2024 16:00:33 +0000
Data from NASA’s retired Spitzer Space Telescope has given scientists new insights into why some supermassive black holes shine differently than others. In images from NASA’s retired Spitzer Space Telescope, streams of dust thousands of light-years long flow toward the supermassive black hole at the heart of the Andromeda galaxy. It turns out these streams […]
Match ID: 0 Score: 30.00 source: www.nasa.gov age: 0 days
qualifiers: 15.00 climate change, 15.00 carbon
No one has seen the data behind Tyson’s “climate friendly beef” claim
Wed, 08 May 2024 14:33:04 +0000
Millions of taxpayer dollars flow to livestock companies raising "low carbon" beef.
Match ID: 1 Score: 30.00 source: arstechnica.com age: 1 day
qualifiers: 15.00 climate change, 15.00 carbon
World’s top climate scientists expect global heating to blast past 1.5C target
Wed, 08 May 2024 09:00:39 GMT
Exclusive: Planet is headed for at least 2.5C of heating with disastrous results for humanity, poll of hundreds of scientists finds
Hundreds of the world’s leading climate scientists expect global temperatures to rise to at least 2.5C (4.5F) above preindustrial levels this century, blasting past internationally agreed targets and causing catastrophic consequences for humanity and the planet, an exclusive Guardian survey has revealed.
Almost 80% of the respondents, all from the authoritative Intergovernmental Panel on Climate Change (IPCC), foresee at least 2.5C of global heating, while almost half anticipate at least 3C (5.4F). Only 6% thought the internationally agreed 1.5C (2.7F) limit would be met.
Continue reading...Experts issue warning after finding global average concentration in March was 4.7ppm higher than same period last year
The largest ever recorded leap in the amount of carbon dioxide laden in the world’s atmosphere has just occurred, according to researchers who monitor the relentless accumulation of the primary gas that is heating the planet.
The global average concentration of carbon dioxide in March this year was 4.7 parts per million (or ppm) higher than it it was in March last year, which is a record-breaking increase in CO2 levels over a 12-month period.
Continue reading...Move suggests homes will rely on electricity for low-carbon heating well into the future
A third pilot project to test the use of hydrogen heating in homes has been shelved by the UK government in the clearest sign to date that households will rely on electricity for low-carbon heating in the coming decades.
The government said it would shelve plans to develop a “hydrogen town” to test whether hydrogen could help to heat homes at scale before taking a final decision after 2026.
Continue reading...Fighting spirit helped us achieve the Paris accords in 2015 – and we need it now the world is on course to overshoot 1.5C
• ‘Hopeless and broken’: why the world’s top climate scientists are in despair
• Christiana Figueres was the head of the UN climate change convention from 2010 to 2016
“Hopeless and broken”: that is how a top scientist interviewed by the Guardian described feeling as she and hundreds of other climate experts shared harrowing predictions of the future of the planet this week.
I resonate with her feelings of despair. Even as the former head of the UN climate change convention that achieved the Paris agreement in 2015, I, like many, can succumb to believing in the worst possible outcome. Just after I assumed the role of UN climate chief in 2010, I said to a room full of reporters that I didn’t believe a global agreement on climate would be possible in my lifetime.
Continue reading...Exclusive: Survey of hundreds of experts reveals harrowing picture of future, but they warn climate fight must not be abandoned
“Sometimes it is almost impossible not to feel hopeless and broken,” says the climate scientist Ruth Cerezo-Mota. “After all the flooding, fires, and droughts of the last three years worldwide, all related to climate change, and after the fury of Hurricane Otis in Mexico, my country, I really thought governments were ready to listen to the science, to act in the people’s best interest.”
Instead, Cerezo-Mota expects the world to heat by a catastrophic 3C this century, soaring past the internationally agreed 1.5C target and delivering enormous suffering to billions of people. This is her optimistic view, she says.
Continue reading...
SEMrush and Ahrefs are among
the most popular tools in the SEO industry. Both companies have been in
business for years and have thousands of customers per month.
If you're a professional SEO or trying to do digital
marketing on your own, at some point you'll likely consider using a tool to
help with your efforts. Ahrefs and SEMrush are two names that will likely
appear on your shortlist.
In this guide, I'm going to help you learn more about these SEO tools and how to choose the one that's best for your purposes.
What is SEMrush?
SEMrush is a popular SEO tool with a wide range of
features—it's the leading competitor research service for online marketers.
SEMrush's SEO Keyword Magic tool offers over 20 billion Google-approved
keywords, which are constantly updated and it's the largest keyword database.
The program was developed in 2007 as SeoQuake is a
small Firefox extension
Features
Ahrefs is a leading SEO platform that offers a set of
tools to grow your search traffic, research your competitors, and monitor your
niche. The company was founded in 2010, and it has become a popular choice
among SEO tools. Ahrefs has a keyword index of over 10.3 billion keywords and
offers accurate and extensive backlink data updated every 15-30 minutes and it
is the world's most extensive backlink index database.
Features
Direct Comparisons: Ahrefs vs SEMrush
Now that you know a little more about each tool, let's
take a look at how they compare. I'll analyze each tool to see how they differ
in interfaces, keyword research resources, rank tracking, and competitor
analysis.
User Interface
Ahrefs and SEMrush both offer comprehensive information
and quick metrics regarding your website's SEO performance. However, Ahrefs
takes a bit more of a hands-on approach to getting your account fully set up,
whereas SEMrush's simpler dashboard can give you access to the data you need
quickly.
In this section, we provide a brief overview of the elements
found on each dashboard and highlight the ease with which you can complete
tasks.
AHREFS
The Ahrefs dashboard is less cluttered than that of
SEMrush, and its primary menu is at the very top of the page, with a search bar
designed only for entering URLs.
Additional features of the Ahrefs platform include:
SEMRUSH
When you log into the SEMrush Tool, you will find four
main modules. These include information about your domains, organic keyword
analysis, ad keyword, and site traffic.
You'll also find some other options like
Both Ahrefs and SEMrush have user-friendly dashboards,
but Ahrefs is less cluttered and easier to navigate. On the other hand, SEMrush
offers dozens of extra tools, including access to customer support resources.
When deciding on which dashboard to use, consider what
you value in the user interface, and test out both.
If you're looking to track your website's search engine
ranking, rank tracking features can help. You can also use them to monitor your
competitors.
Let's take a look at Ahrefs vs. SEMrush to see which
tool does a better job.
The Ahrefs Rank Tracker is simpler to use. Just type in
the domain name and keywords you want to analyze, and it spits out a report
showing you the search engine results page (SERP) ranking for each keyword you
enter.
Rank Tracker looks at the ranking performance of
keywords and compares them with the top rankings for those keywords. Ahrefs
also offers:
You'll see metrics that help you understand your
visibility, traffic, average position, and keyword difficulty.
It gives you an idea of whether a keyword would be
profitable to target or not.
SEMRush offers a tool called Position Tracking. This
tool is a project tool—you must set it up as a new project. Below are a few of
the most popular features of the SEMrush Position Tracking tool:
All subscribers are given regular data updates and
mobile search rankings upon subscribing
The platform provides opportunities to track several
SERP features, including Local tracking.
Intuitive reports allow you to track statistics for the
pages on your website, as well as the keywords used in those pages.
Identify pages that may be competing with each other
using the Cannibalization report.
Ahrefs is a more user-friendly option. It takes seconds
to enter a domain name and keywords. From there, you can quickly decide whether
to proceed with that keyword or figure out how to rank better for other
keywords.
SEMrush allows you to check your mobile rankings and
ranking updates daily, which is something Ahrefs does not offer. SEMrush also
offers social media rankings, a tool you won't find within the Ahrefs platform.
Both are good which one do you like let me know in the comment.
Keyword research is closely related to rank tracking,
but it's used for deciding which keywords you plan on using for future content
rather than those you use now.
When it comes to SEO, keyword research is the most
important thing to consider when comparing the two platforms.
The Ahrefs Keyword Explorer provides you with thousands
of keyword ideas and filters search results based on the chosen search engine.
Ahrefs supports several features, including:
SEMrush's Keyword Magic Tool has over 20 billion
keywords for Google. You can type in any keyword you want, and a list of
suggested keywords will appear.
The Keyword Magic Tool also lets you to:
Both of these tools offer keyword research features and
allow users to break down complicated tasks into something that can be
understood by beginners and advanced users alike.
If you're interested in keyword suggestions, SEMrush
appears to have more keyword suggestions than Ahrefs does. It also continues to
add new features, like the Keyword Gap tool and SERP Questions recommendations.
Both platforms offer competitor analysis tools,
eliminating the need to come up with keywords off the top of your head. Each
tool is useful for finding keywords that will be useful for your competition so
you know they will be valuable to you.
Ahrefs' domain comparison tool lets you compare up to five websites (your website and four competitors) side-by-side.it also shows you how your site is ranked against others with metrics such as backlinks, domain ratings, and more.
Use the Competing Domains section to see a list of your
most direct competitors, and explore how many keywords matches your competitors
have.
To find more information about your competitor, you can
look at the Site Explorer and Content Explorer tools and type in their URL
instead of yours.
SEMrush provides a variety of insights into your
competitors' marketing tactics. The platform enables you to research your
competitors effectively. It also offers several resources for competitor
analysis including:
Traffic Analytics helps you identify where your
audience comes from, how they engage with your site, what devices visitors use
to view your site, and how your audiences overlap with other websites.
SEMrush's Organic Research examines your website's
major competitors and shows their organic search rankings, keywords they are
ranking for, and even if they are ranking for any (SERP) features and more.
The Market Explorer search field allows you to type in
a domain and lists websites or articles similar to what you entered. Market
Explorer also allows users to perform in-depth data analytics on These
companies and markets.
SEMrush wins here because it has more tools dedicated to
competitor analysis than Ahrefs. However, Ahrefs offers a lot of functionality
in this area, too. It takes a combination of both tools to gain an advantage
over your competition.
When it comes to keyword data research, you will become
confused about which one to choose.
Consider choosing Ahrefs if you
Consider SEMrush if you:
Both tools are great. Choose the one which meets your
requirements and if you have any experience using either Ahrefs or SEMrush let
me know in the comment section which works well for you.
At least seven schools have reached an agreement with students around investment transparency and exploring divestment from Israel.
The post Some Universities Chose Violence. Others Responded to Protests by Considering Student Demands. appeared first on The Intercept.
University faculty have put their bodies and livelihoods on the line amid a brutal, violent response to student protests for Gaza.
The post From UCLA to Columbia, Professors Nationwide Defend Students as Politicians and Police Attack appeared first on The Intercept.
Academic staff occupy lobby of Greenwich Village campus building in support of students’ demands for divestment from Israel
The first faculty-led Gaza solidarity encampment protest in the US was established on Wednesday night at New York’s New School campus.
Nearly two dozen professors and lecturers at the New York City college pitched tents and unrolled sleeping bags in the lobby of an academic building located in Greenwich Village in Manhattan in support of their students, and against Israel’s attack on Gaza and their university’s financial ties to Israel.
Continue reading...On campus, inside the Capitol, and in court, there’s an all-out assault on American democracy in the name of Israel.
The post They Used to Say Arabs Can’t Have Democracy Because It’d Be Bad for Israel. Now the U.S. Can’t Have It Either. appeared first on The Intercept.
The movement to divest from Israel and the defense industry is gaining momentum on college campuses.
The post “A New Sense of World-Building”: Inside the Student Movement for Gaza appeared first on The Intercept.
The last big protests cost $150 million in NYPD overtime — with tens of millions more in lawsuit settlements.
The post How Much Money Did the NYPD Waste Quashing Student Protests? We Tallied It Up. appeared first on The Intercept.
Two college protesters were placed in solitary confinement, according to Columbia professors who worked in real time to support jailed students.
The post After Raids, NYPD Denied Student Protesters Water and Food in Jail appeared first on The Intercept.
The bipartisan duo also praised schools that brought in police to violently quell protests and connected the demonstrations to the TikTok ban.
The post In No Labels Call, Josh Gottheimer, Mike Lawler, and University Trustees Agree: FBI Should Investigate Campus Protests appeared first on The Intercept.
Nahla Al-Arian lost more than 200 relatives in Israel's attacks on Gaza. Then Eric Adams said she was the reason police raided Columbia.
The post NYC Mayor Smeared a Grandmother as an “Outside Agitator” to Justify NYPD Assault on Columbia appeared first on The Intercept.
When police attacked student protesters, a lone trash can was the only damaged property I saw around City College of New York.
The post I’ve Covered Violent Crackdowns on Protests for 15 Years. This Police Overreaction Was Unhinged. appeared first on The Intercept.
The famed scholar on why reducing Hamas to a terrorist label sanctions Israel’s war on Palestinians.
The post Judith Butler Will Not Co-Sign Israel’s Alibi for Genocide appeared first on The Intercept.
His defense challenged the extradition request, saying California needs to produce a warrant signed by that state’s governor
Harvey Weinstein will remain locked up in New York as a court works out whether he should stay in a city jail while he awaits a retrial in a rape case, or be sent back to California to continue serving a prison sentence.
The fallen movie mogul denied his consent for an extradition request from California related to a separate rape conviction during a brief court hearing Thursday. Weinstein will continue to be held in New York as the extradition process plays out.
Continue reading...Film due to release in 2026 to be first in a new series, and will be directed by and star Serkis, who ‘has unfinished business with that stinker – Gollum!’
Peter Jackson and Andy Serkis are working on a new Lord of the Rings film due to release in 2026, it has been announced.
In a statement, Warner Bros said that the first of a new set of Lord of the Rings films, The Hunt for Gollum, will be directed by and star Serkis, and be produced by Jackson.
Continue reading...Generations have now grown up with games, but they have long been linked to science fiction and are now the subject of histories, too. Here are five of the best
There is a lingering misconception about video games that they exist entirely in their own sealed subculture, utterly untranslatable to books or movies. But this has never been the case: in the 80s and 90s, games (and by extension, virtual worlds) became a major theme of cyberpunk fiction, from the jacked-in hacker dystopia of William Gibson’s Neuromancer to the narcotic alternative reality of Jeff Noon’s Vurt.
Video game history and culture have also been widely explored in book form, whether that was the How to Beat Pac-Man manuals of the 1980s or current investigations of the game development process by journalists such as Jason Schreier and Tom Bissell. Avid gamers and utter newcomers alike will learn much about video games and our modern digital world from these five books.
Continue reading...Nahla Al-Arian lost more than 200 relatives in Israel's attacks on Gaza. Then Eric Adams said she was the reason police raided Columbia.
The post NYC Mayor Smeared a Grandmother as an “Outside Agitator” to Justify NYPD Assault on Columbia appeared first on The Intercept.
Non-fungible tokens (NFTs) are the most popular digital assets today, capturing the attention of cryptocurrency investors, whales and people from around the world. People find it amazing that some users spend thousands or millions of dollars on a single NFT-based image of a monkey or other token, but you can simply take a screenshot for free. So here we share some freuently asked question about NFTs.
NFT stands for non-fungible token, which is a cryptographic token on a blockchain with unique identification codes that distinguish it from other tokens. NFTs are unique and not interchangeable, which means no two NFTs are the same. NFTs can be a unique artwork, GIF, Images, videos, Audio album. in-game items, collectibles etc.
A blockchain is a distributed digital ledger that allows for the secure storage of data. By recording any kind of information—such as bank account transactions, the ownership of Non-Fungible Tokens (NFTs), or Decentralized Finance (DeFi) smart contracts—in one place, and distributing it to many different computers, blockchains ensure that data can’t be manipulated without everyone in the system being aware.
The value of an NFT comes from its ability to be traded freely and securely on the blockchain, which is not possible with other current digital ownership solutionsThe NFT points to its location on the blockchain, but doesn’t necessarily contain the digital property. For example, if you replace one bitcoin with another, you will still have the same thing. If you buy a non-fungible item, such as a movie ticket, it is impossible to replace it with any other movie ticket because each ticket is unique to a specific time and place.
One of the unique characteristics of non-fungible tokens (NFTs) is that they can be tokenised to create a digital certificate of ownership that can be bought, sold and traded on the blockchain.
As with crypto-currency, records of who owns what are stored on a ledger that is maintained by thousands of computers around the world. These records can’t be forged because the whole system operates on an open-source network.
NFTs also contain smart contracts—small computer programs that run on the blockchain—that give the artist, for example, a cut of any future sale of the token.
Non-fungible tokens (NFTs) aren't cryptocurrencies, but they do use blockchain technology. Many NFTs are based on Ethereum, where the blockchain serves as a ledger for all the transactions related to said NFT and the properties it represents.5) How to make an NFT?
Anyone can create an NFT. All you need is a digital wallet, some ethereum tokens and a connection to an NFT marketplace where you’ll be able to upload and sell your creations
When you purchase a stock in NFT, that purchase is recorded on the blockchain—the bitcoin ledger of transactions—and that entry acts as your proof of ownership.
The value of an NFT varies a lot based on the digital asset up for grabs. People use NFTs to trade and sell digital art, so when creating an NFT, you should consider the popularity of your digital artwork along with historical statistics.
In the year 2021, a digital artist called Pak created an artwork called The Merge. It was sold on the Nifty Gateway NFT market for $91.8 million.
Non-fungible tokens can be used in investment opportunities. One can purchase an NFT and resell it at a profit. Certain NFT marketplaces let sellers of NFTs keep a percentage of the profits from sales of the assets they create.
Many people want to buy NFTs because it lets them support the arts and own something cool from their favorite musicians, brands, and celebrities. NFTs also give artists an opportunity to program in continual royalties if someone buys their work. Galleries see this as a way to reach new buyers interested in art.
There are many places to buy digital assets, like opensea and their policies vary. On top shot, for instance, you sign up for a waitlist that can be thousands of people long. When a digital asset goes on sale, you are occasionally chosen to purchase it.
To mint an NFT token, you must pay some amount of gas fee to process the transaction on the Etherum blockchain, but you can mint your NFT on a different blockchain called Polygon to avoid paying gas fees. This option is available on OpenSea and this simply denotes that your NFT will only be able to trade using Polygon's blockchain and not Etherum's blockchain. Mintable allows you to mint NFTs for free without paying any gas fees.
The answer is no. Non-Fungible Tokens are minted on the blockchain using cryptocurrencies such as Etherum, Solana, Polygon, and so on. Once a Non-Fungible Token is minted, the transaction is recorded on the blockchain and the contract or license is awarded to whoever has that Non-Fungible Token in their wallet.
You can sell your work and creations by attaching a license to it on the blockchain, where its ownership can be transferred. This lets you get exposure without losing full ownership of your work. Some of the most successful projects include Cryptopunks, Bored Ape Yatch Club NFTs, SandBox, World of Women and so on. These NFT projects have gained popularity globally and are owned by celebrities and other successful entrepreneurs. Owning one of these NFTs gives you an automatic ticket to exclusive business meetings and life-changing connections.
That’s a wrap. Hope you guys found this article enlightening. I just answer some question with my limited knowledge about NFTs. If you have any questions or suggestions, feel free to drop them in the comment section below. Also I have a question for you, Is bitcoin an NFTs? let me know in The comment section below
Farmers ‘on the brink’ after record rains, phasing out of EU subsidies and price volatility
British farmers are considering walking away from their farms as the recent record run of wet weather has left the sector “on the brink”, rural bodies have warned.
The Agriculture and Horticulture Development Board (AHDB) and the Soil Association raised concerns over the perilous situations facing many in their industry, with profits being squeezed and extreme weather driven by the climate crisis putting financial and mental strain on farm owners.
Continue reading...When it comes to simple fluids from simple vessels, I know with dark certainty that the tablecloth is in for a besmirching
I can’t pour things. I don’t mean complicated stuff such as concrete, paint for road markings or a cake glaze; I’m talking simple fluids from simple vessels. I can’t get jugs or teapots to work for me. I’ve been dribbling and dripping all my life, making a mess whenever I am called upon to transfer liquid from one place to another. There is either a global issue here, concerning humankind’s inability to manufacture pouring apparatus that pour cleanly, or it’s just me. I think it’s just me.
Take a manoeuvre executed satisfactorily by everyone apart from me: the making of a cup of tea in a semi-formal setting such as a breakfast table in an old-fashioned hotel, or a tearoom in a wholesome setting – a National Trust asset, perhaps. Faced with teapot, milk jug and, perhaps, for added stress, an extra jug of hot water, I know with dark certainty that the tablecloth is in for a besmirching. First there’s the milk, a certain amount of which will run down the outside of the jug rather than into the cup. But then comes the deluge. For it is time for the teapot.
Continue reading...Sales of cottage cheese are booming thanks to a boost from protein-hungry social media influencers. But do we really need all this extra protein? Madeleine Finlay speaks to Joanne Slavin, a professor of food science and nutrition at the University of Minnesota, to find out what exactly protein is doing in our bodies, and what happens to it when we consume it in excess
Read more from the Guardian about protein
Read more about the cottage cheese trend
Continue reading...At least seven schools have reached an agreement with students around investment transparency and exploring divestment from Israel.
The post Some Universities Chose Violence. Others Responded to Protests by Considering Student Demands. appeared first on The Intercept.
“The reality for kids living there is shocking, honestly,” said an official who recently returned from Gaza. “People are living in really squalid conditions.”
The post 600,000 Palestinian Kids in Rafah Can’t “Evacuate” Safely, UNICEF Official Says appeared first on The Intercept.
Climate chaos is threatening food production, trade and lives, says World Meteorological Organization
Hunger and disease are rising in Latin America after a year of record heat, floods and drought, a report by the World Meteorological Organization (WMO) has shown.
The continent, which is trapped between the freakishly hot Pacific and Atlantic Oceans, probably suffered tens of thousands of climate-related deaths in 2023, at least $21bn (£17bn) of economic damage and “the greatest calorific loss” of any region, the study found.
Continue reading...He tackled a murderer to the ground to protect the public. But the draconian licence conditions of his ‘99-year sentence’ meant that the first person he called was his probation officer
Marc Conway was regarded as a model IPP prisoner. Perhaps the model IPP prisoner. He received an indeterminate imprisonment for public protection (IPP) sentence at 30 for armed robbery. Before that, he had committed a long list of crimes including driving without a licence, selling class A drugs and firearm offences. He had spent eight years in jail. Now, here he was, a free man, studying with students from the University of Cambridge, working for the Prison Reform Trust and delivering speeches to the great and the good.
The date was 29 November 2019. The occasion was the fifth-anniversary celebration of an educational project in which Cambridge students and prisoners learned together. Conway, who had taken part in the project, had been asked to give a speech at Fishmongers’ Hall, a Grade II* listed building in the City of London. “It was a lovely sunny day. You never get that weather in November in London,” he says. “We had food, we was laughing, we was joking, we was patting each other on the back. I was getting a bit nervous, because I’d only been out a year and I was still new to public speaking.”
Continue reading...With the world’s humanitarian system in crisis, many NGOs now recognise that local charities can deliver much more at far less cost
Before civil war engulfed her Ethiopian home region of Tigray in 2020, Tsega Girma was a prosperous trader who sold stationery and other goods. But when hungry children displaced by the conflict started appearing in the streets, she sold everything and used the proceeds to buy them food.
After that money dried up, Tsega appealed to Tigray’s diaspora for donations. At the height of the war, her Emahoy Tsega Girma Charity Foundation provided meals to 24,000 children a day.
Continue reading...Two college protesters were placed in solitary confinement, according to Columbia professors who worked in real time to support jailed students.
The post After Raids, NYPD Denied Student Protesters Water and Food in Jail appeared first on The Intercept.
When police attacked student protesters, a lone trash can was the only damaged property I saw around City College of New York.
The post I’ve Covered Violent Crackdowns on Protests for 15 Years. This Police Overreaction Was Unhinged. appeared first on The Intercept.
A weekly email from Yotam Ottolenghi, Meera Sodha, Felicity Cloake and Rachel Roddy, featuring the latest recipes and seasonal eating ideas
Each week we’ll send you an exclusive newsletter from our star food writers. We’ll also send you the latest recipes from Yotam Ottolenghi, Nigel Slater, Meera Sodha and all our star cooks, stand-out food features and seasonal eating inspiration, plus restaurant reviews from Grace Dent and Jay Rayner.
Sign up below to start receiving the best of our culinary journalism in one mouth-watering weekly email.
Continue reading...
Video:
00:07:30
On the last day of his Huginn mission, ESA astronaut Andreas Mogensen takes us on a tour of the place he called home for 6 months: the International Space Station. From the beautiful views of Cupola to the kitchen in Node 1 filled with food and friends and all the way to the science of Columbus, the Space Station is the work and living place for astronauts as they help push science forward.
Style, with substance: what’s really trending this week, a roundup of the best fashion journalism and your wardrobe dilemmas solved, direct to your inbox every Thursday
Style, with substance: what’s really trending this week, a roundup of the best fashion journalism and your wardrobe dilemmas solved, delivered straight to your inbox every Thursday
Explore all our newsletters: whether you love film, football, fashion or food, we’ve got something for you
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Imagine a world in which you can do transactions and many other things without having to give your personal information. A world in which you don’t need to rely on banks or governments anymore. Sounds amazing, right? That’s exactly what blockchain technology allows us to do.
It’s like your computer’s hard drive. blockchain is a technology that lets you store data in digital blocks, which are connected together like links in a chain.
Blockchain technology was originally invented in 1991 by two mathematicians, Stuart Haber and W. Scot Stornetta. They first proposed the system to ensure that timestamps could not be tampered with.
A few years later, in 1998, software developer Nick Szabo proposed using a similar kind of technology to secure a digital payments system he called “Bit Gold.” However, this innovation was not adopted until Satoshi Nakamoto claimed to have invented the first Blockchain and Bitcoin.
A blockchain is a distributed database shared between the nodes of a computer network. It saves information in digital format. Many people first heard of blockchain technology when they started to look up information about bitcoin.
Blockchain is used in cryptocurrency systems to ensure secure, decentralized records of transactions.
Blockchain allowed people to guarantee the fidelity and security of a record of data without the need for a third party to ensure accuracy.
To understand how a blockchain works, Consider these basic steps:
Let’s get to know more about the blockchain.
Blockchain records digital information and distributes it across the network without changing it. The information is distributed among many users and stored in an immutable, permanent ledger that can't be changed or destroyed. That's why blockchain is also called "Distributed Ledger Technology" or DLT.
Here’s how it works:
And that’s the beauty of it! The process may seem complicated, but it’s done in minutes with modern technology. And because technology is advancing rapidly, I expect things to move even more quickly than ever.
Even though blockchain is integral to cryptocurrency, it has other applications. For example, blockchain can be used for storing reliable data about transactions. Many people confuse blockchain with cryptocurrencies like bitcoin and ethereum.
Blockchain already being adopted by some big-name companies, such as Walmart, AIG, Siemens, Pfizer, and Unilever. For example, IBM's Food Trust uses blockchain to track food's journey before reaching its final destination.
Although some of you may consider this practice excessive, food suppliers and manufacturers adhere to the policy of tracing their products because bacteria such as E. coli and Salmonella have been found in packaged foods. In addition, there have been isolated cases where dangerous allergens such as peanuts have accidentally been introduced into certain products.
Tracing and identifying the sources of an outbreak is a challenging task that can take months or years. Thanks to the Blockchain, however, companies now know exactly where their food has been—so they can trace its location and prevent future outbreaks.
Blockchain technology allows systems to react much faster in the event of a hazard. It also has many other uses in the modern world.
Blockchain technology is safe, even if it’s public. People can access the technology using an internet connection.
Have you ever been in a situation where you had all your data stored at one place and that one secure place got compromised? Wouldn't it be great if there was a way to prevent your data from leaking out even when the security of your storage systems is compromised?
Blockchain technology provides a way of avoiding this situation by using multiple computers at different locations to store information about transactions. If one computer experiences problems with a transaction, it will not affect the other nodes.
Instead, other nodes will use the correct information to cross-reference your incorrect node. This is called “Decentralization,” meaning all the information is stored in multiple places.
Blockchain guarantees your data's authenticity—not just its accuracy, but also its irreversibility. It can also be used to store data that are difficult to register, like legal contracts, state identifications, or a company's product inventory.
Blockchain has many advantages and disadvantages.
I’ll answer the most frequently asked questions about blockchain in this section.
Blockchain is not a cryptocurrency but a technology that makes cryptocurrencies possible. It's a digital ledger that records every transaction seamlessly.
Yes, blockchain can be theoretically hacked, but it is a complicated task to be achieved. A network of users constantly reviews it, which makes hacking the blockchain difficult.
Coinbase Global is currently the biggest blockchain company in the world. The company runs a commendable infrastructure, services, and technology for the digital currency economy.
Blockchain is a decentralized technology. It’s a chain of distributed ledgers connected with nodes. Each node can be any electronic device. Thus, one owns blockhain.
Bitcoin is a cryptocurrency, which is powered by Blockchain technology while Blockchain is a distributed ledger of cryptocurrency
Generally a database is a collection of data which can be stored and organized using a database management system. The people who have access to the database can view or edit the information stored there. The client-server network architecture is used to implement databases. whereas a blockchain is a growing list of records, called blocks, stored in a distributed system. Each block contains a cryptographic hash of the previous block, timestamp and transaction information. Modification of data is not allowed due to the design of the blockchain. The technology allows decentralized control and eliminates risks of data modification by other parties.
Blockchain has a wide spectrum of applications and, over the next 5-10 years, we will likely see it being integrated into all sorts of industries. From finance to healthcare, blockchain could revolutionize the way we store and share data. Although there is some hesitation to adopt blockchain systems right now, that won't be the case in 2022-2023 (and even less so in 2026). Once people become more comfortable with the technology and understand how it can work for them, owners, CEOs and entrepreneurs alike will be quick to leverage blockchain technology for their own gain. Hope you like this article if you have any question let me know in the comments section
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Fresh warnings about polluted rivers from the environment watchdog are shocking but not surprising
A steady stream of stories about the shockingly poor state of Britain’s waterways has turned into a flood. In March, news that competitors in the Boat Race had been warned to stay out of the Thames due to sewage pollution travelled round the world. That the water industry is dysfunctional, and for years has enriched shareholders and executives at the expense of customers, is broadly recognised by the public. Anglers, surfers and swimmers have joined with environmentalists and the former pop star Feargal Sharkey to demand improvements. Polling last year suggested more than half of voters would take the government’s handling of sewage into account when deciding how to vote.
The latest warnings about the situation from Dame Glenys Stacey, the environment watchdog, are thus not surprising. But her data and analysis still have the power to shock. Under the worst-case assessment from the Office for Environmental Protection, just 21% of England’s rivers and other bodies of water will be in a good ecological state by the target date of 2027 – in contravention of the Environment Act.
Continue reading...The island nation is one of the most vulnerable countries in the world, as changing weather patterns bring more dry spells and unpredictable rainy seasons. Sean Smith travelled to the south to meet those affected and to report on the ways they are trying to prepare for an altered future
Continue reading...Organised populists are trying to drag our cherished institution into polarising and divisive rows. The public won’t let them
In March this year, the BBC’s director general, Tim Davie, gave a speech on the BBC’s future. He said unbalanced, unfair and overtly politicised attacks on institutions eroded the essence of what made Britain so globally admired. He was right. The increasing number of attacks on our institutions poses a risk to us all – at home as well as overseas. Strong, independent institutions are essential to functioning democracies. Remaining impartial allows them to put the public interest above political and business interests, take a long-term view of complex issues, and make decisions that benefit society as a whole. Their neutrality allows workers to apply expertise without fear of reprisal or coercion. And they act as roadblocks to extremism.
Too often, charities, public bodies and universities are becoming proxies in other people’s fights, and targets in other people’s schemes. It’s part of a populist approach: choose a well-known institution and level divisive accusations at it, and you can surprise people and grab headlines. The National Trust, where I work, will be 130 years old in January next year. Nearly 10% of the UK’s population are signed-up, paying members. It’s been called a peculiarly British miracle. It’s been achieved through cooperation towards a common goal – securing hundreds of miles of coast and countryside, nature reserves, historic landscapes and buildings, and priceless treasures, in perpetuity, for the benefit of the entire country.
Celia Richardson is director of communications and marketing at the National Trust
Continue reading...Mostly traffic-free and flat, this route between Yatton and Cheddar takes in old stations and views across the Levels to the Bristol Channel – and it’s being extended to form part of the 76-mile Somerset Circle
It’s a noise the former railway tunnel probably hadn’t heard in a while. Somewhere in the dark is a hooting part-owl, part-forlorn steam train. My sister Ele has stopped on her bike to blow determinedly across her cupped hands like a flute. As she recreates this long-gone sound, I pedal on through the cool, damp air. Water drips steadily from the stalactite-coated brickwork as my front light illuminates pedestrians and their dogs looming from the echoing shadows.
We are cycling the Strawberry Line, a 10.75-mile, mostly off-road cycling and walking route from Yatton to Cheddar in north Somerset, on a sunny spring morning. White blackthorn flowers blossom in the hedges, and puddles splatter us with brick-coloured mud. I always love the thought that this rich red soil was formed when Britain basked close to the equator, before migrating north, along with Europe and North America.
Continue reading...Nahla Al-Arian lost more than 200 relatives in Israel's attacks on Gaza. Then Eric Adams said she was the reason police raided Columbia.
The post NYC Mayor Smeared a Grandmother as an “Outside Agitator” to Justify NYPD Assault on Columbia appeared first on The Intercept.
The far right are on the march in Germany and the anti-immigrant Alternative for Germany has become the most popular party in several states. Immigration and a sense of being economically left behind have been driving factors in the rise in popularity but the Green party and the federal government’s climate policies have also borne the brunt of public anger. The Guardian travelled to Görlitz, on the German border with Poland, to find out to what extent Germany’s green policies are fuelling the far right
• How climate policies are becoming focus for far-right attacks in Germany
Continue reading...We’d like to hear from people who have been purchasing luxury goods and experiences in recent years, and how they feel about their spending habits
We’re interested to hear about people’s spending habits in the area of upmarket or luxury goods, services and experiences, and whether they are generally happy with their spending on non-essentials.
We’d like to know whether you have spent money on expensive non-essential items such as designer clothing, high end housewares, luxury holidays, expensive beauty or wellness treatments, or exclusive dining, for instance, in the past year, and if so, whether you have struggled to afford this.
Continue reading...From biking adventures to city breaks, get inspiration for your next break – whether in the UK or further afield – with twice-weekly emails from the Guardian’s travel editors. You’ll also receive handpicked offers from Guardian Holidays.
From biking adventures to city breaks, get inspiration for your next break – whether in the UK or further afield – with twice-weekly emails from the Guardian’s travel editors.
You’ll also receive handpicked offers from Guardian Holidays.
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