tomr_stargazer

16 ms·

31.
by tomr_stargazer 6y ago
This image was shocking. Thank you for sharing. I feel like Treebeard, from the Lord of the Rings, coming across Saruman’s destruction of Isengard.
32.
by tomr_stargazer 7y ago
The Teknika Molodezi prediction came true! Not a single Soviet housewife in 2000 lacked a nuclear reactor. ;)
33.
by tomr_stargazer 7y ago
Thank you for these detailed instructions! I've been a longtime fan of grayscale screen, but often end up lapsing after a few days when I want to look at a photograph. Now I don't have that failure mode anymore!
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by tomr_stargazer 7y ago
Carl Sagan, in the novel "Contact" (1985), actually predicted an ad-blocking technology that worked along these lines! He called it "Adnix" [0] [0] http://www.technovelgy.com/ct/Content.asp?Bnum=2223
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by tomr_stargazer 7y ago
In this case, the black hole image was created with radio interferometry, in which you can separately record electromagnetic waves from individual radio telescopes and then combine them electronically after-the-fact. Visible and infrared in
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by tomr_stargazer 9y ago
This article is insightful, but it's unfortunate that it does not even mention the EZLN [0] (colloquially, Zapatistas), the majority indigenous and rural breakaway communities in the southern state of Chiapas which have been autonomous
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by tomr_stargazer 9y ago
I know your request is tongue-in-cheek, but here you go: http://lite.cnn.io/en
38.
by tomr_stargazer 9y ago
> What I thought that wasn't possible? Or is this just the speed of light in water, so the particles are still moving slower than the speed of light in a vacuum? Good question! It's the latter - the shining is due to Cherenkov
39.
by tomr_stargazer 9y ago
Gary is a connoisseur for pixel-perfect large text that exactly fills the given space: https://twitter.com/garybernhardt/status/780497807434100736 https://twitter.com/garybernhardt/status&#x2F
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by tomr_stargazer 10y ago
2012 grad here - the test has been abolished for many years.
41.
by tomr_stargazer 10y ago
Additional dust inside a given galaxy would both absorb optical light and emit infrared light (depending on its temperature, which is set by the Galaxy's ambient starlight among other factors); both effects are readily detectable.
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by tomr_stargazer 10y ago
(PhD student in astrophysics answering here.) This is a great question! You're addressing the idea (roughly along the lines of Occam's razor) that if there's any way to explain the "extra mass" without invoking a ne
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by tomr_stargazer 11y ago
In your above calculation, you're assuming that an object needs to be resolved to be visible. To the contrary, telescopes are able to see un-resolved objects (objects whose angular size is below the angular resolution of the telescope)
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by tomr_stargazer 11y ago
Yes, for example: Project PANOPTES[0] which aims to use many citizen scientists' participation to discover transiting planets. Check it out! [0] http://panoptes.github.io/
45.
by tomr_stargazer 11y ago
When it comes to small (-er than, say, Jupiter) bodies in the distant outer Solar system, here's one relevant piece of information: Because these bodies' light is purely reflected solar light, whose brightness drops as the sun-obj
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by tomr_stargazer 11y ago
Does anyone know if the probe lost five years of expected lifetime due to its five-year delay (original orbital insertion expected back in 2010) or whether it was able to effectively "hibernate" or otherwise conserve its fuel and
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by tomr_stargazer 11y ago
Press release from MIT: http://news.mit.edu/2015/new-earth-sized-exoplanet-1111
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Astronomers announce discovery of closest Earth-sized planet yet found(cfa.harvard.edu)
2 points by tomr_stargazer 11y ago|1 comments
49.
by tomr_stargazer 11y ago
The comic is actually drawn by the artist of zenpencils, Gavin Aung Than (in a clever imitation of Bill's style, and with Bill's words, so it's an easy mix-up!)
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by tomr_stargazer 12y ago
The atmosphere is totally opaque to X-rays[0], so this wouldn't work from the ground. [0] http://commons.wikimedia.org/wiki/File:Atmospheric_electroma...
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by tomr_stargazer 12y ago
Yes on your edit. The origin of Earth's atmospheric nitrogen is thought to be in part due to outgassing (in other words, gas that was stored inside rocks in the early Earth and then released from inside), but is highly uncertain &
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by tomr_stargazer 12y ago
Yes, the heavy elements in our Solar System were formed inside previous generations of stars.
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by tomr_stargazer 12y ago
>>> yes, intuitively, hot water vapor rises Temperature is just an expression of mean kinetic energy of particles. If gases (especially light gases) are hot enough, their kinetic energy can correspond to a velocity that actually ex
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by tomr_stargazer 12y ago
>>> Why wouldn't water be one of the by products of the big-bang To address the first part of your question – The Big Bang (which happened 13.8 billion years ago) created ~only hydrogen and helium. So, no water existed in the
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by tomr_stargazer 12y ago
Ancient Greek actually – apologies for being nitpicky. 'A planet (from Ancient Greek ἀστὴρ πλανήτης (astēr planētēs), meaning "wandering star")' > https://en.wikipedia.org/wiki/Planet
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by tomr_stargazer 12y ago
Not a dumb question! It's answered in the GRB wikipedia article: "Life surviving an initial onslaught, including those located on the side of the earth facing away from the burst, would have to contend with the potentially lethal
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by tomr_stargazer 12y ago
> Why can't the brain develop a reverse blur function? We can do this with algorithms Adaptive optics requires more than just algorithms -- the algorithms' output are fed into a rapidly moving reflective surface to de-blur the