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CO₂ emissions
How much CO₂ does the world emit? Which countries emit the most?
New
The latest blog posts to take off on Hacker News. 374 posts.
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Long COVID: Lasting effects of COVID-19
COVID-19 can have lasting symptoms that affect many parts of the body. Learn more about the symptoms and effects of long COVID.
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CERN at Home: Building a Particle Detector
What do you do when you’re stuck at home with a 16-year-old son during a pandemic lockdown? Well, the first answer is that you build a gaming PC. That was a good project with a lot of incentives to complete, but that also meant it was soon over. So, what next? I spotted a post about an outreach project from CERN to…
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Significant sex differences in Covid-19 immune response
Yale researchers have identified significant differences in how the immune systems of women and men respond to the virus that causes COVID-19.
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How NASA and ISRO discovered water on the Moon
The story of finding water on the Moon spans at least two decades and multiple space agencies, culminating in renewed lunar exploration plans across the world.
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Do we really travel through time with the speed of light?
Science News, Physics, Science, Philosophy, Philosophy of Science
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The Recursive Universe
A few years ago I came across this video, showing a complex machine built entirely in Conway’s Game of Life:
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Unusual Maps
A forum moderated by author and artist Edward Tufte, including discussion and questions dealing with information design.
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A 189 Year Old Limitation on Inductor Size Has Been Broken (2018)
One of the three basic circuit elements just got a lot smaller for the very first time, in what promises to be a trillion-dollar…
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Optimal Peanut Butter and Banana Sandwiches
I was personally useless for most of the Spring of 2020. There was a period of time, though, after the peak in coronavirus cases here in NYC and before the onslaught of police violence here in NYC that I managed to scrounge up the motivation to do something other than drink and maniacally refresh my Twitter feed. I…
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Vitamin D, part 2: Shannon's story
How much Vitamin D should I take? This is still the looming question, and it’s time to address it. First, though, imagine that someone in a public forum online asked me, “How much metoprolol (a…
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A step towards new nitrogen products
A nifty move with nitrogen has brought the world one step closer to creating a range of useful products — from dyes to pharmaceuticals — out of thin air.
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Data from Chernobyl and Fukushima provide answers about the risks of nuclear
The public is always asking of nuclear, ‘what if it all goes wrong?’ Data from Chernobyl and Fukushima have now provided the answer.
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Today is Earth Overshoot Day – (08/22)
Learn how past Earth Overshoot Days are calculated based on the Ecological Footprint and see how the date has changed over the years.
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Wildfires in Big Basin Redwoods State Park
We are devastated to report that Big Basin, as we have known it, loved it, and cherished it for generations, is gone. Early reports are that the wildfire has consumed much of the park’s historic facilities. We do not yet know the fate of the park’s grandest old trees.
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Open Problems in Robotics
Robotics is one of those things the business funny papers regularly wonder about; it seems like consumer robotics is a revolutionary trillion dollar market which is perpetually 20-years away -more…
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Popular seafood species in sharp decline around the world
Fish market favourites such as orange roughy, common octopus and pink conch are among the species of fish and invertebrates in rapid decline around the world, according to new research.
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Reversing Mental Age with Psychedelics
INTRODUCTION There are some overlaps in the effects of serotonergic psychedelic drugs such as LSD, peyote, psilocybin mushrooms and also the state of mind that newborn infants and young children ar…
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Environmental Impacts of Food Production
What are the environmental impacts of food production? How do we reduce the impacts of agriculture on the environment?
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Saliva-based Covid-19 test approved by FDA
The YSPH-developed test, called SalivaDirect, has been used as part of an NBA testing program and will now be available to more diagnostic laboratories.
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Entropy explained, with sheep (2016)
An explorable blog post about entropy, with sheep.
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Young children would rather explore than get rewards
Young children will pass up rewards they know they can collect to explore other options, a new study suggests. Researchers found that when adults and 4- to 5-year-old children played a game where certain choices earned them rewards, both adults and children quickly learned what choices would give them the biggest…
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Vitamin D, part 1: back to basics
Vitamin D is a big deal. Recent studies have shown that patients with low Vitamin D levels are more likely to die from Covid-19 than their Vitamin D-rich counterparts,(1) and deficiency in the…
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Electric cooker an easy, efficient way to sanitize N95 masks, study finds
CHAMPAIGN, Ill. — Owners of electric multicookers may be able to add another use to its list of functions, a new study suggests: sanitization of…