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Science & Space

The most popular blog posts about science & space on Hacker News. 169 posts.

2021
151

The Great Filter – Are We Almost Past It? (1998)

Combining standard stories of biologists, astronomers, physicists, and social scientists would lead us to expect a much smaller filter than we observe. Thus one of these stories must be wrong. To find out who is wrong, and to inform our choices, we should study and reconsider all these areas. For example, we should…

153

Maps Of Matter

Status: Rough working notes – me thinking aloud. Speculative, and likely contains errors, misconceptions, and omissions; thoughtful, informed comments are welcome. Intended for a general scientifically curious audience, not requiring much detailed specialist background.

155

The Joy of Condensed Matter

I published a slightly different version of this article in Nautilus on February 24, 2021. Everyone seems to be talking about the problems with physics: Woit’s book Not Even Wrong, Smolin&#82…

156

The Geometry of Color Perception

The previous pages have explained three very different methods for defining a color: (1) the measurement of the color stimulus as a spectral emittance or reflectance curve in colorimetry ; (2) the proportional responses to the stimulus by the L , M and S cones, represented as a chromaticity diagram ; and (3) the…