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Yes, humans are still evolving. Here's how you can tell.
Researchers looked at DNA from 215,000 people and found that a number of genes are becoming uncommon in older people. One of these genes, for example, predisposes you to Alzheimer’s disease. Although we don't know for sure why this is happening, this is great news for everyone!
The Moving Sofa Problem
The problem is in two dimensions, the corner is a 90-degree angle, and the width of the corridor is 1. What is the largest two-dimensional area that can fit around the corner?
The moving sofa problem is still unsolved, since 1966 when it was first asked.
PERPETUAL STUDENT PETROS AND GOLDBACH’S CONJECTURE
One of my memories as a freshman in the University of Athens was when a distinguished professor of Theoretical Computer Science - that was later awarded a Gödel Prize 🥳 - convinced the whole classroom that if we attempted to solve an open problem, his knowledge and wits were not as important as the fresh minds that we [possibly] had. After class all of us dreamed about solving Goldbach’s conjecture and needed to find a copy of ‘Uncle Petros’ immediately! Today’s strip is about that lecture and focuses on the possibility stated above that we didn’t consider very much at the time! 🤓
It’s nothing to lose sleep over—really, I promise—but Earth’s atmosphere is leaking oxygen. Atmospheric oxygen levels have dropped by 0.7 percent over the past 800,000 years, and while scientists aren’t sure why, they’re rather excited about it.
Sometimes, the best way to illustrate a complicated philosophical concept is by framing it as a story or situation. Here are nine such thought experiments with downright disturbing implications.
What Controls Organ Regeneration?
Regenerative medicine--rebuilding organs and tissues--could conceivably be the 21st century equivalent of antibiotics in the 20th. Before that can happen, researchers must understand the signals that control regeneration.
Descend into the twilight zone, where sunlight is scarce and every dive yields surprising discoveries.
Are you in San Francisco this weekend? Head down to California Academy of Science to check out their new exhibit Twilight Zone: Deep Reefs Revealed that features rare species, many of which have never been displayed in a public aquarium.
Did you know that we know less about the mysterious part of the ocean known as the twilight zone than we do about the surface of the moon?!
Three puzzles test whether the concept of infinity has purchase in the physical world.
