Vucea
Vucea OP t1_je2adta wrote
Countries in the European Union have approved a landmark law that will ensure all new cars sold from 2035 must have zero emissions.
Poland voted against the law, while Italy, Bulgaria and Romania abstained.
The agreement was delayed for weeks after Germany called for an exemption for cars running on e-fuels.
Vucea OP t1_jdx4blf wrote
Once we emit about 1000 gigatons of carbon, much of the massive ice sheet will melt irreversibly. We’ve emitted 500 gigatons so far.
The Greenland Ice Sheet covers 1.7 million square kilometers (660,200 square miles) in the Arctic. If it melts entirely, global sea level would rise about 7 meters (23 feet), but scientists aren’t sure how quickly the ice sheet could melt. Modeling tipping points, which are critical thresholds where a system behavior irreversibly changes, helps researchers find out when that melt might occur.
Based in part on carbon emissions, a new study using simulations identified two tipping points for the Greenland Ice Sheet: releasing 1000 gigatons of carbon into the atmosphere will cause the southern portion of the ice sheet to melt; about 2500 gigatons of carbon means permanent loss of nearly the entire ice sheet.
Having emitted about 500 gigatons of carbon, we’re about halfway to the first tipping point.
Vucea OP t1_jdpt2c6 wrote
Reply to Nvidia Speeds Key Chipmaking Computation by 40x by Vucea
Inverse lithography produces features smaller than the wavelength of light, but it usually takes weeks to compute
Nvidia says it has found a way to speed up a computation-limited step in the chipmaking process so that it happens 40 times as fast as today’s standard.
Called inverse lithography, it’s a key tool that allows chipmakers to print nanometer-scale features using light with a longer wavelength than the size of those features. Inverse lithography’s use has been limited by the massive size of the needed computation.
Nvidia’s answer, cuLitho, is a set of algorithms designed for use with GPUs, turns what has been two weeks of work into an overnight job.
Vucea OP t1_j9gzjyx wrote
One side effect of unlimited content-creation machines—generative AI—is unlimited content.
On Monday, the editor of the renowned sci-fi publication Clarkesworld Magazine announced that he had temporarily closed story submissions due to a massive increase in machine-generated stories sent to the publication.
In a graph shared on Twitter, Clarkesworld editor Neil Clarke tallied the number of banned writers submitting plagiarized or machine-generated stories.
The numbers totaled 500 in February, up from just over 100 in January and a low baseline of around 25 in October 2022.
The rise in banned submissions roughly coincides with the release of ChatGPT on November 30, 2022.
Vucea OP t1_j9chddn wrote
Getting PCBs made is fun and cheap, they’ll let you draw whatever you want on there, and the cops can’t stop you.
Vucea OP t1_j7ud91f wrote
Astrophysicists propose geoengineering solution to climate warming
Proponents of a "moonshot" idea to deal with global heating have been handed a new, very literal, interpretation by researchers who have proposed firing plumes of moon dust from a gun into space in order to deflect the sun’s rays away from Earth.
The seemingly outlandish concept, outlined in a new research paper, would involve creating a "solar shield" in space by mining the moon of millions of tons of its dust and then "ballistically eject[ing]" it to a point in space about 1m miles from Earth, where the floating grains would partially block incoming sunlight.
Vucea OP t1_j63arq6 wrote
Reply to The next globalisation: there is growing support for the idea that the world is experiencing not 'deglobalisation' but rather 're-globalisation', owing to accelerating changes in energy and technology. by Vucea
The re-globalisation glimpsed in Davos will be fundamentally different from previous iterations
For the past decade, the steady demise of ‘Davos Man’ – the avatar of global business and cosmopolitanism – was the big story here, owing to the 2008 financial crisis, Brexit, Donald Trump’s election, democratic backsliding around the world, covid-19, and Russia’s war in Ukraine. All were seen as signs that globalisation had gone too far and would be thrown into reverse.
But the mood at this year’s meeting was slightly more optimistic. Despite much concern about conflict and economic strife, the world seems to be doing a little better than global elites expected when they last met in May. The Ukrainians are valiantly resisting the Russian invaders, the West is united, Europe has managed to keep the lights on this winter, and some think we might still avoid a recession.
Moreover, beneath these important short-term developments is a more profound shift toward a new form of globalisation, albeit one that will be quite different from what preceded it. While the globalisation of goods seems to have peaked, services are becoming ever more globalised, owing to the revolution in telework during the pandemic.
There is also an accelerating revolution in energy, driven partly by the war in Ukraine. European Commission president, Ursula von der Leyen, and Germany’s chancellor, Olaf Scholz, predict that the widespread adoption of renewables and hydrogen power will be as significant as the industrial revolution of the 19th century.
At the same time, advances in artificial intelligence (AI) are opening vast new possibilities, while also creating tensions over microchips and renewed fears about joblessness and rogue robots.
Vucea OP t1_j5nnt1x wrote
Reply to Seven technologies to watch in 2023: tools and techniques that are poised to have an outsized impact on science. by Vucea
Single-molecule protein sequencing
Volume electron microscopy
CRISPR anywhere
High-precision radiocarbon dating
Single-cell metabolomics
In vitro embryo models
James Webb Space Telescope
Vucea OP t1_j574jmt wrote
Scientists engineer artificial organs for integration into the human body to replace, duplicate, or augment functional, naturally occurring organs. They pose a solution to organ donor shortages, and can also be used as medical training tools.
Based on the materials researchers use to produce them, artificial organs are divided into three main classes.
Mechanical artificial organs are made exclusively of inanimate polymers such as plastics and metals;
biomechanical organs involve both living materials such as cells and inanimate materials;
and biological or bioartificial organs can be made of living cells and biodegradable polymers.
Vucea OP t1_j1qyc7w wrote
High fertilizer prices could put an additional 100 million people at risk of undernourishment, a study suggests.
The war in Ukraine has led to the blockade of millions of tons of wheat, barley and corn, but reduced food exports from the region are less of a driver of food price rises than feared, researchers say.
Instead, a modeling study led by University of Edinburgh researchers suggests surging energy and fertilizer prices will have by far the greatest impact on food security in coming decades.
Vucea OP t1_iybyjsr wrote
Reply to Indonesia puts 100-island archipelago up for auction, sparking environmental concerns by Vucea
Uninhabited Widi Reserve is in a marine-protected zone and being promoted as 'one of the most intact coral atoll ecosystems left on Earth'.
Vucea t1_ivo5ikn wrote
Reply to Does History Repeat Itself? Cyclical theories of the past rest on questionable assumptions, but can they still help us understand our future? by CPHfuturesstudies
History doesn't necessarily repeat itself, but it often rhymes.
Vucea OP t1_je6ubfk wrote
Reply to Bill Gates: The rules of the road are about to change. I believe we’ll reach a tipping point with autonomous vehicles within the next decade. by Vucea
>I recently had the opportunity to ride in a car made by the British company Wayve, which has a fairly novel approach to self-driving vehicles.
>While a lot of AVs can only navigate on streets that have been loaded into their system, the Wayve vehicle operates more like a person.
Link to video