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/sfg/ Spaceflight General

No.10992807 ViewReplyLast 50OriginalReport
*laughs in superchad lift edition*

>>10989763
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No.10993869 ViewReplyOriginalReport
I solved it, guise
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Science of tea

No.10993817 ViewReplyOriginalReport
How does /sci/ brew their tea? Is it healthy?

https://www.ncbi.nlm.nih.gov/pubmed/18296328
>However tea also contains a unique amino acid, L-theanine that may modulate aspects of brain function in humans. Evidence from human electroencephalograph (EEG) studies show that it has a direct effect on the brain (Juneja et al. Trends in Food Science & Tech 1999;10;199-204). L-theanine significantly increases activity in the alpha frequency band which indicates that it relaxes the mind without inducing drowsiness.
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No.10994683 ViewReplyOriginalReport
Believing racism is an issue is intrinsically regressive

Because out of infinite choice of how to react, believing in racism creates the sociological imagination of racism and is intrinsically the only racism.
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No.10995445 ViewReplyOriginalReport
Scientifically speaking, what is the evolutionary purpose of gender dysphoria?
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No.10991694 ViewReplyOriginalReport
What blows your mind?
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No.10992976 ViewReplyOriginalReport
scientifically speaking, is there a drug that alleviates the effects of solitary isolation?
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Vision Enhancement

No.10990048 ViewReplyOriginalReport
I cant stop wondering about personally practical advances in technology. I'd really like to know more about vision enhancement, and what possibilities could engage it? Vision enhancement being any, likely external, improvement in definition quality, speed of light uptake, available light uptake, enhancement / augmentation of light uptake (in amount, AKA seeing brighter), or like the dragonflies and birds of prey do, fps enhancement. Intriguing too are other bodily enhancements. How will we lose evolution to upgrades, board? And how can I start today?
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Number of people needed for a good gene pool

No.10995450 ViewReplyOriginalReport
Hi /sci/ I am curious as to how many people you would need for a successful gene pool. The reason I ask is because we live in an ever-changing world full of chaos. And I want to know how many people you would need to have your people survive in case of a disaster. (Black Death, Nuclear Annihilation, Huge Space Rock, etc.)
I have been doing some research into the matter and found that small numbers of people (in the dozens) can successfully survive for thousands of years.

https://slappedham.com/10-most-isolated-and-dangerous-tribes-in-the-world/2/

There are some tribes that have survived tens of thousands of years with as little as 20-30 people.
What number of people would you recommend /sci/?

pic unrelated.