Category Archives: Mathematics

Dinosaurs And Gravity

I saw an interesting postulation on Twitter that the reason the dinosaurs could grow so large was that there was less gravity during the Mesozoic. My response:

The Risk Of Spaceflight

A new paper assessing spaceflight mortality. Not sure how useful it is, given the admitted paucity of data.

[Update a few minutes later]

When a Mars simulation goes wrong. Yes, we have a lot to learn before we go to other planets, and even then, people will die, often in terrible ways. Part of the answer is that we have to be more ambitious about how many we send. Six simply isn’t enough.