DaveC426913's latest activity

Something I noticed many people assumed: nowhere does it say they're "holes" they're "cavities", which does not suggest they cut all the...

Make the radii of the holes tend to zero: we have a body tending to look close to a coin. If all the molecules of coin increase at once...

The point i am now trying to establish is why did ANYONE think x would decrease? At first I thought they had a point, but i cant even...

Right. Sorry. That's why it's so bad to quote from other sources without proper context. Context: Some people (I won't call them fools)...

TIL: "The US uses metric, they just disguise it. All* US standard units are defined in terms of metric units, and have been since the...

The only place it is assumed is in my answer. It is not in the problem. So, the question remains unanswered. Am I correct in my...

(What? No Grade School prefix? :) ) Apologies for the lowest form of physics question: a quiz on social media. Does distance X a...

Even under 2g?

I am at that age where I can damage something if I sleep on the wrong pillow.

Thanks guys. This thought was driven by someone posing the question as to whether jumping would be "impossible" in 2g. My first thought...

I like poems - AS LONG AS THEY ARE NOT MORE THAN 8 LINES LONG. But that is not a joke.

Never been a fan of poetry. But this Bilston guy is brilliant.

Let's say in a nice leisurely challenge, I jump a foot. i.e. my feet peak at one foot off the ground. If I were in 2g and I expended...

I always feel that the overemphasis on “observers” can naturally lead to this kind of a misunderstanding.

Why are we talking about human perception? Relativity worked just fine for the 13.69 billion years before humans came along. It's a...