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Science & Space

The most popular blog posts about science & space on Hacker News. 384 posts.

2024
33

Galois Theory

Note: These pages make extensive use of the latest XHTML and CSS Standards . They ought to look great in any standards-compliant modern browser. Unfortunately, they will probably look horrible in older browsers, like Netscape 4.x and IE 4.x. Moreover, many posts use MathML, which is, currently only supported in…

36

Visualizing World War II

If you’ve been reading this blog for any length of time, you’ll know that maps and history are two of my favorite things. I love history because I love learning about the vast panoply of the human …

41

Why time seems to pass faster as we age

1/ I’ve been mega-obsessed with this feeling. A year as a 36-year-old seems so much shorter as compared to when I was a kid or even as a teen. It seems cosmically unfair – we have fewer years to live, and each year flies by faster. 2/ But, why is that happening? My tentative conclusion is that… Read More

43

Can solar costs keep shrinking?

The costs of some parts of solar farms will drop to near zero. But some obstacles remain to make this energy cheaply available everywhere. As a result, the entire energy industry will change. What are those obstacles? How will the industry change?

57

Why Bridges Don't Sink

[Note that this article is a transcript of the video embedded above.] The essence of a bridge is not just that it goes over something, but that there’s clear space underneath for a river, railway, or road. Maybe this is already obvious to you, but bridges present a unique structural challenge. In