The Science Thread

A couple of interesting videos:

This one ...

... tells the story of mathematics from the beginning 5000 years ago until today, in just 50 minutes. Not much detail, of course, but the guy manage to highlight the really important developments, such as the invention (or, depending on your philiosophical view on what mathematics IS - discovery) of calculus during the 17th century.

This one (from World Science Festival) ...
... is a discussion between Brian Greene and a couple of anthropologists about the development of humans (after Homo erectus). Turns out there may have been as many as 7 different species of the homo genus living at the same time (including 3 types of "hobbits"). Also, there seems to have been extensive cross-breeding between several of them.

Homo pibbuR

PS. Regarding homo species. There is still an ongoing debate about what makes a species and what's a subspecies. Some claim that for instance the neanderthal is not a species of the genus Homo (H. neanderthalis), but a subspecies of Homo sapiens (H. sapiens neanderthalensis), just as we (H. sapiens sapiens) are considered a subspecies of said species. DS.
 
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pibbuR said:
... tells the story of mathematics from the beginning 5000 years ago until today, in just 50 minutes. Not much detail, of course, but the guy manage to highlight the really important developments, such as the invention (or, depending on your philiosophical view on what mathematics IS - discovery) of calculus during the 17th century.
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It's pretty interesting, thanks for the link! I had a few bookmarks of videos that seemed to be presented like TV shows and probably more superficial (haven't watched them), but this one is a great summary with interesting references. :)
 
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Physicists Create Biggest-Ever Schrödinger’s Cat ... (
)
... in the form of a 16 microgram (10^17 atoms) sapphire crystal in quantum superposition.

pibbuR who declares his home to be in a state of pseudo superposition: wanting a new cat (pibbuR) and at the same time not wanting a new cat (the wife component). Pseudo because they're only considering live cats.
 
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I skimmed through it and found some of the things she says pretty interesting. In particular, that some researchers think influenza may have originated in fish.
 
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Bird flu is on the radar for several years now. Variants come and go, and chicken and the like are immediately killed here when duiagnosed with it because everyone fears that this virus might hop onto humans one day. Apart from the fact that it also kills a lot of birds just by itself.
 
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HiddenX said:
New hydrogel can extract unlimited amounts of water from the air, even in deserts
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Wasn't there a misinterpretation from the person who made the layout of the article?

I see the catchy subtitle "Hydrogel can be produced quickly and in massive amounts", while the text seems more cautious: "If it can be manufactured quickly and on a large scale" and even explains that better results are obtained after longer periods of salt infusion into the Hydrogel (30 days).

However, that'd be a breakthrough.
 
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ruling_out.png
 
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Lemmings come to my mind ... ;)
 
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