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gravitationalbeauty:

Tutulemma: Solar Eclipse Analemma
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athankyou:

April 15th, this total lunar eclipse sequence looks south down icy Waterton Lake from the Waterton Lakes National Park in Alberta, Canada

athankyou:

April 15th, this total lunar eclipse sequence looks south down icy Waterton Lake from the Waterton Lakes National Park in Alberta, Canada

(Source: apod.nasa.gov)

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butterfly-being:

limitlesscorrosion:

221b-bacon-street:

tibets:

THIS IS A NATURALLY OCCURRING METAL WHAT

metal as fuck

This is a pure bismuth crystal. The heaviest element that is not radioactive (ok technically it is but it’s half life is like 9 orders of magnitude older than the universe so it really doesn’t count.) Probably my favourite crystal structure, even if you forget the colour. Surprisingly, bismuth is also super-not-toxic. You can actually eat the stuff and it’s often in indigestion remedies. Fascinating element, all round.

always reblog bismuth

butterfly-being:

limitlesscorrosion:

221b-bacon-street:

tibets:

THIS IS A NATURALLY OCCURRING METAL WHAT

metal as fuck

This is a pure bismuth crystal. The heaviest element that is not radioactive (ok technically it is but it’s half life is like 9 orders of magnitude older than the universe so it really doesn’t count.) Probably my favourite crystal structure, even if you forget the colour. Surprisingly, bismuth is also super-not-toxic. You can actually eat the stuff and it’s often in indigestion remedies. Fascinating element, all round.

always reblog bismuth

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17,813 plays

(Source: myrandomplaylist)

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