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Q: Is the final step in evolution an ascension into an energy-based lifeform?
Physicist: Awesome question! The very short answer is: nope. Energy beings are an old staple of sci-fi (a good one), but they’re almost certainly impossible, or at least, it’s almost certainly...
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Q: Why doesn’t life and evolution violate the second law of thermodynamics?...
Physicist: In very short: nope. The second law of thermodynamics is sometimes (too succinctly) stated as “disorder increases over time”. That statements seems to hold true, what with all of the...
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The nuptial effect
Every day, on average, 2-3 physicists get married. On Saturday I’ll be attempting to push that average to as high as 3-4. It’ll be more like this than not. So (for our regular readers), there’ll be a...
View ArticleQ: If the number of ancestors you have doubles with each generation going...
Physicist: In a word: yes. But it’s not a problem in large populations. The original questioner pointed out that in the age of Charlemagne (more or less when everybody’s 40-greats grandfolk were...
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Q: If the Sun pulls things directly toward it, then why does everything move...
Physicist: Newton’s laws of motion say: Where MP and AP are the mass and acceleration of a planet, MS is the mass of the Sun, R is the distance between them, and G is a universal constant. What this...
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Q: How do we know that everyone has a common anecestor? How do we know that...
The original question was: From biology and genetics we know that any group of living organisms had a mitochondrial most recent common ancestor (mitochondrial Eve): a female organism who lived in the...
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