@jagermaestro - Tumblr Blog

ferdinandchoffray

lensblr-network

Dark side.

photo by Ferdinand Choffray (ferdinandchoffray.tumblr.com)

20aliens-deactivated20200625

dennybitte

last natural light refraction through ice

by Denny Bitte

raf199844

Old man Logan Like a Boss

thoughts-memories

visualechoess

wilted-scenes

Thunderstorms over South Dakota

bled

ponderation

The Perfect Flight by Stephan Wormslev

gatissed

♔ “Come over and I will cook for you.” {Hannibal, Sorbet}

themedicalstate

Folding human brain in 3D

The distinctive troughs and crests of the human brain are not present in most animals; highly folded brains are seen only in a handful of species, including some primates, dolphins, elephants and pigs. In humans, folding begins in fetal brains around the 20th week of gestation and is completed only when the child is about a year and a half.

Why the brain is folded can be rationalized easily from an evolutionary perspective; folded brains likely evolved to fit a large cortex into a small volume with the benefit of reducing neuronal wiring length and improving cognitive function. Less understood is how the brain folds. Several hypotheses have been proposed but none have been directly used to make testable predictions. Now, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences collaborating with scientists in Finland and France have shown that while many molecular processes are important in determining cellular events, what ultimately causes the brain to fold is a simple mechanical instability associated with buckling.

Source: Harvard University

ri-science

A small lump of potassium reacting with water to create potassium hydroxide and hydrogen. The reaction is very exothermic, and the heat ignites the hydrogen, making a big explosion.