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Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 4,455 posts.
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Black holes as the source of dark energy
New research suggests that as our universe expands, black holes gain mass, and this connection between black holes and the universe's expansion is the source of dark energy.
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Rising Temperatures in the Netherlands
Visualizing the weather anomalies in rainfall, sunshine and temperature in the Netherlands using data from the Dutch Meteorological Institute (KNMI).
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Hawking Hawking
There’s a very good new book about Stephen Hawking that just came out, Charles Seife’s Hawking Hawking. Some detailed reviews can be found at Prospect Magazine (Philip Ball) and the New…
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Chemists Work to Desalt the Ocean for Drinking Water, One Nanoliter at a Time
Discover groundbreaking research, inspiring student stories and more from The University of Texas at Austin.
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Researchers achieved 1,270 Wh/L in an anode-free lithium metal battery
[POSTECH, KAIST, and Gyeongsang National University achieve a record-breaking energy density of 1,270 Wh/L]
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Can We Catch the Next ‘Oumuamua?
Awesome plan! But, how frequently are suitable targets expected to inter the inner solar system that would also be able to be reached from Earth’s L2 point?
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What is Electricity? (1996)
What is electricity? This question is impossible to answer because the word " Electricity " has several contradictory meanings. These different meanings are incompatible, and the contradictions confuse everyone. If you don't understand electricity, you're not alone. Even teachers, engineers, and scientists have a hard…
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A collection of outlandish human-computer interaction papers
Homepage of Florian Echtler
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Why the Greenwich meridian moved
Walk about 100 meters east of the Observatory's meridian line. Slow down to a crawl as your GPS approaches 0 degrees, 0 minutes, 0 seconds longitude. There's no sign and no line on the ground.
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Towards a Better Pythagorean Cup
There was an article on Hacker News the other day by David Richeson entitled Make Your Own Pythagorean Cup . A Pythagorean cup is a cup with a built-in siphon. Supposedly invented by Pythagoras, the cup functions just like an ordinary cup as long as it is only filled to a certain level. If anyone gets greedy and tries…
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SLAC researchers find proof of altermagnetism, a new magnetic phase
The team is the first to directly observe a unique property in an altermagnetic candidate material, key evidence of a new phase of magnetism.
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Nuclear energy is long-term sustainable
Some people claim nuclear fuel is inexhaustible and circular, others say we'll run out soon. We do the math. Turns out, it's roughly as inexhaustible as sunlight.
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Study suggests most Americans would be healthier without daylight saving time (2025)
According to a new analysis by Stanford Medicine scientists, changing clocks twice a year disrupts circadian rhythms, leading to higher rates of stroke and obesity.
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Cheap, sustainable hydrogen through solar power
https://youtu.be/uNQLOU8aATc Study: Solar-to-hydrogen efficiency of >9% in photocatalytic water splitting (DOI: 10.1038/s41586-022-05399-1) A new kind of solar panel, developed at the University of Michigan, has achieved 9% efficiency in converting water into hydrogen and oxygen—mimickin
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Permeable materials in homes act as sponges for harmful chemicals: study
Permeable materials in homes can retain volatile organic compounds for up to a year
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Using A.I. to decode communication of sperm whales
David Gruber wants to know what sperm whales are saying. He thinks it might actually be possible.
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Cross-Laminated Timber
Cross Laminated Timber (or CLT for short) is a structural building material that can replace concrete and steel in new building construction. I wrote about CLT back in April and mentioned that the Gotham Gal and I are in the process of making two CLT buildings right now. The paper version of the New York […]
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mRNA vaccines: let's eradicate herpes, cure cancer, and be sick a whole lot less
Quick, inexpensive, made-to-order treatments
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Heart rate variability differs between smartwatch and clinical testing
At a time when usage of smartwatches and rings has become more common, a West Virginia University human performance researcher points out heart rate variability — the time between heartbeats — the devices report is different from what would be recorded in a clinical setting.