Spyke

Replies

Comment on

What's the worst thing you've ever smelled?

For me there are two strong ones competing: Hákarl, basically fermented rotting shark – this smells like a Serbian railway toilet during the war, when it wasn't cleaned for years, but used regularly. It tastes the same. The other was a dog carcass, that was left on the roadside on a nice, hot summer day, and the 'not my job' mentality left it there slowly decomposing over roughly two-three weeks.

Comment on

How do computers make any color using red/green/blue, when paints make every clor using red/yellow/blue?o

Basically there are two color models, additive and substractive. RGB is additive - turning on red it triggers the red receptors in the eye. If you turn on all three it triggers all your color receptors and you'll see white. That is all the visible spectrum, if you look at the Sun (which you shouldn't) you perceive it as white even if the maximum of the emission is at green.

When mixing paint (subtractive model, like CMYK on printers) if you mix all colors, they absorb different part of the light and don't reflect anything visible for you, and you'll see black(ish)

science

Comment on

Article proposes variant of current ΛCDM cosmological model that makes the universe twice as old

Reply in thread

Wikipedia is a good starting point: https://en.m.wikipedia.org/wiki/Age_of_the_universe . I'm not an expert on the topic, but if I'd like to dig deeper, I'd visit Amazon, look for cosmology books, pick something that's expansive, looks like a textbook, plus point if the title contains the word 'introduction' (you'll see the irony inside). It's the best if you find something from after 2010 (after Planck and WMAP missions). I found Weinberg: Cosmology, but that's from 2008. If you have your favorite textbook, check it out from the local library, but make sure NOT to download it from Library Genesis (http://libgen.is/ is the site to avoid) because that would cause the publisher financial losses.