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To save on weight, a detour to the moon is the best route to Mars
A new MIT study suggests that a human mission to Mars may lighten its launch load considerably by refueling on the moon.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 2,419 posts.
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How to Grow a Three Sisters Garden (2016)
By Melissa Kruse-Peeples For many Native American communities, three seeds - corn, beans, and squash represent the most important crops. When planted together, the Three Sisters, work together to help one another thrive and survive. Utilizing corn, beans, and squash together in your garden draws upon centuries of…
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Inverted perovskite solar cell breaks 25% efficiency record
Northwestern University researchers have raised the standards again for perovskite solar cells with a new development that helped the emerging technology hit new records for efficiency.
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Arxiv.org is experiencing a DDoS attack
arXiv users may be experiencing email disruption due to a DDOS attack. Over the past few days, a small number of users issued over a million email change…
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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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Antioxidants Vitamin C and Vitamin E associated with lower risk of Parkinson’s
MINNEAPOLIS - People who consume high levels of vitamin C and E in their diet may have a lower risk of Parkinson’s disease than people who get only small amounts of these nutrients, according to a new study published in the January 6, 2021, online issue of Neurology ® , the medical journal of the American Academy of…
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People are biased against creative ideas, studies find
While people say they welcome creative ideas, they are in fact frightened by them and favor the tried and true, according to a new ILR School study. (Aug. 25, 2011)
1870
Do Penguins Have Knees? (2019)
What is the penguin’s skeleton truly made of? Do penguins actually have knees? Why do penguins walk that way. Find out here!
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Riddle of cement’s structure is finally solved
Researchers have finally determined that concrete material acts at once as a continuous solid and like an aggregate of small particles. The work may help researchers engineer more durable, sustainable concrete.
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Public exposure to BPA exceeds acceptable health safety levels
Population exposure to the synthetic chemical Bisphenol A (BPA), which is used in everything from plastic and metal food containers to reusable water bottles and drinking water pipes in Europe is well above acceptable health safety levels, according to updated research data. This poses a potential health risk to…
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Electromagnetic Water Cloak Eliminates Drag and Wake
After a major metamaterials breakthrough, David Smith learned how to turn promising research into real-world applications.
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Death rates from energy production per TWh
Death rates are measured based on deaths from accidents and air pollution per terawatt-hour of electricity.
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Planting trees not always an effective way of binding carbon dioxide
Tree-planting has been widely seen as an effective way of binding carbon as carbon dioxide levels rise in the atmosphere. But now researchers from the University of Gothenburg and elsewhere are warning that forests on nutrient-poor land won’t be an additional carbon sink in the long term. As forests age, their uptake…
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Big Data was used to see if TCM was scientific (2023)
People love to show that skeptics were wrong about something, especially when national pride hangs in the balance. The South China Morning Post published the following headline on November 3rd: “Scientists find traditional Chinese medicine is based on a complex network of proteins – 3,000 years before modern science.”…
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What predicts students’ drinking habits? How much they think others are drinking
A new study by researchers at Virginia Commonwealth University examined students’ genetic risk of alcohol use, roommates’ drinking habits and the perception of peer drinking.
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Why DNA damage from smoking and UV rays cause cancer in some but not others
Scientists have found the first direct evidence of the powerful role our genetic makeup plays in influencing our risk of cancer, with inherited genes interacting with acquired genetic mutations to shape how tumours evolve.
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Psilocybin treatment extends cellular lifespan, improves survival of aged mice
Emory University researchers identified that psilocin, a byproduct of consuming psilocybin, the active ingredient in psychedelic mushrooms, actively delays aging in cells and organisms.
1883
Three of the oldest stars in the universe found circling the Milky Way
MIT astronomers discovered three of the oldest stars in the universe, and they live in our own galactic neighborhood. The stars are in the Milky Way’s “halo” — the cloud of stars that envelopes the entire main galactic disk — and they appear to have formed between 12 and 13 billion years ago, when the very first…
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Ocean acidification may cause dramatic changes to phytoplankton
A new study finds that increased ocean acidification will dramatically affect global populations of phytoplankton: Some species will die out, while others will flourish, which will affect marine food webs.
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Nano-engineered thermoelectrics enable scalable, compressor-free cooling
Researchers at Johns Hopkins APL, in collaboration with Samsung Research, have unveiled a breakthrough in solid-state cooling technology, doubling the efficiency of today’s commercial systems. Driven by the Lab’s patented nano-engineered thin-film thermoelectric materials and devices, this innovation paves the way for…
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Scientists solve 200-year-old puzzle of how tobacco plants make nicotine
Scientists have uncovered how tobacco plants naturally make nicotine, solving a mystery that has puzzled researchers for nearly two centuries.
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Unraveling the mysteries of habit formation
Researchers研究者名Asaoka, Nozomi