thecraftychemist:

sagrasa:

sixpenceee:

If you thought the post on twins sharing consciousness was awesome, wait until you hear this.

A 44-year-old French man one day went to the trip to the doctor’s because he felt a pain in his left leg. He’s a married man with two kids and a steady job.

Doctor’s found that he had hydrocephalus as a child (when your brain is filled with fluids) so they decided to run some brain scans.

What they found was that the majority of his head was filled with fluid. Over time, the buildup caused his lateral ventricles to swell so much that his brain had been flattened to a thin sheet.

Doctors estimated that his brain mass had been reduced by at most 70%, affecting the areas in charge of motion, language, emotion, and, well, everything.

Shockingly, he was fine. While his IQ was only 75, he wasn’t mentally challenged. He held a steady job, raised a family, and didn’t have trouble interacting with others.

Over time, his brain had adapted to all that pressure, and even though he had fewer neurons that most, Jacques was still a fully functional human being.

The doctors drained the fluid and while his brain is much smaller now, he is still a healthy individual with a normal life.

SOURCE

The amazing resilience of the human brain!

For teaching: human anatomy and physiology; neuroscience

23pairsofchromosomes:

Butterfly eggs on a raspberry plant
A micro-crack in steel
Household dust
Needle and thread
E.coli bacteria on lettuce

Beard hairs under a scanning electron microscope: cut with razor (left) and electric shaver (right)
A moth wing
Leaf of a Virginia spiderwort
Marijuana
Shark skin


For teaching: microscopy

23pairsofchromosomes:

Butterfly eggs on a raspberry plantA micro-crack in steel

A micro-crack in steelHousehold dust

Household dustNeedle and thread

Needle and threadE.coli bacteria on lettuce

E.coli bacteria on lettuce

Beard hairs under a scanning electron microscope: cut with razor (left) and electric shaver (right)

Beard hairs under a scanning electron microscope: cut with razor (left) and electric shaver (right)A moth wing

A moth wingLeaf of a Virginia spiderwort

Leaf of a Virginia spiderwortMarijuana

Marijuanashark skin

Shark skin

For teaching: microscopy

scienceisbeauty:

One of the answers to the topic: Visually stunning math concepts which are easy to explain at Mathematics Stack Exchange.

I think if you look at this animation and think about it long enough, you’ll understand:
Why circles and right-angle triangles and angles are all related
Why sine is opposite over hypotenuse and so on
Why cosine is simply sine but offset by pi/2 radians



For teaching: mathematics, physics / mechanics

scienceisbeauty:

One of the answers to the topic: Visually stunning math concepts which are easy to explain at Mathematics Stack Exchange.

I think if you look at this animation and think about it long enough, you’ll understand:

  • Why circles and right-angle triangles and angles are all related
  • Why sine is opposite over hypotenuse and so on
  • Why cosine is simply sine but offset by pi/2 radians

For teaching: mathematics, physics / mechanics

a-pterosaur-a-day:

image

Source: http://planetdi.startlogic.com/flying_reptiles/batrachognathus_volans.htm

Name: Batrachognathus volans

Name Meaning: Flying Frog Jaw

First Described: 1948

Described By: Ryabinin

Classification: Pterosauria, Rhamphorhynchoidea, Anurognathidae

Batrachognathus is a…

You know how Tumblr sometimes becomes Skimblr?

Well, I was skimming as I saw the words “Flying Frog Jaw”, and had to stop, reverse, and (p)take a look at this animal…

For teaching: evolution (history of life)

idyllspace:

positivebeatsthenegative:

cardiocutie:

Guys you don’t understand how awesome this is. This pattern happens everywhere. It happens on flowers and pinecones absolutely vegetables, it happens all around you. If you don’t think that’s like the realist shit ever i don’t understand you.It’s insane how the universe is literally full of beauty to the point that we can’t even see some of it. Beautiful down to the way it moves.

this is so cool

There is totally a reason why these spirals show up so often in nature! The growth pattern is the most efficient manner of packing—for example, you get the most possible florets in the head of a sunflower using this method (look at a giant sunflower; you can see the spirals). Also, fun fact: the number of spirals present in the florets in the head of a sunflower are Fibonacci sequence numbers, as are the number of petals on the flower. Even funner fact: the golden number and the golden angle all play a role in why this pattern occurs naturally so often in so many ways.


Patterns are so cool and mystical you guys! 
Actually, not really that mystical … It is more amazing that you have a mind capable of making such complex links between observed natural phenomena.
I get angry when real (and more complicated) scientific explanations are glossed over in favour of facile and ‘feel-good’ garbage about mysticism or transcendentalism. I feel it is a disservice to the facts, and it teaches people to not think critically about what they experience.

Firstly, if you tracked the orbits of Earth and Venus, they would look like this:

(source)
Certainly not spirals, but ellipses, one slightly canted over in relation to the other. Something more complicated must be going on therefore to generate the spiral patterns.

To draw the spirals, you have to use the assumption that the Earth is fixed: they are a description of the movement of Venus RELATIVE TO Earth over several years. 

(more detail on how this is drawn at source)
One critical difference between the spirals just above and OP’s original post is the addition of lines. These lines are drawn to connect the Earth to Venus at all points of their respective orbits. Watch this video to see the spiral drawn with the connecting lines shown.
THEREFORE: the spiral pattern is relative: our perception of Venus, not its reality.
Lastly, cite your sources please.

For teaching: astronomy, astrophysics

idyllspace:

positivebeatsthenegative:

cardiocutie:

Guys you don’t understand how awesome this is. This pattern happens everywhere. It happens on flowers and pinecones absolutely vegetables, it happens all around you. If you don’t think that’s like the realist shit ever i don’t understand you.It’s insane how the universe is literally full of beauty to the point that we can’t even see some of it. Beautiful down to the way it moves.

this is so cool

There is totally a reason why these spirals show up so often in nature! The growth pattern is the most efficient manner of packing—for example, you get the most possible florets in the head of a sunflower using this method (look at a giant sunflower; you can see the spirals). Also, fun fact: the number of spirals present in the florets in the head of a sunflower are Fibonacci sequence numbers, as are the number of petals on the flower. Even funner fact: the golden number and the golden angle all play a role in why this pattern occurs naturally so often in so many ways.

Patterns are so cool and mystical you guys! 

Actually, not really that mystical … It is more amazing that you have a mind capable of making such complex links between observed natural phenomena.

I get angry when real (and more complicated) scientific explanations are glossed over in favour of facile and ‘feel-good’ garbage about mysticism or transcendentalism. I feel it is a disservice to the facts, and it teaches people to not think critically about what they experience.

Firstly, if you tracked the orbits of Earth and Venus, they would look like this:

(source)

Certainly not spirals, but ellipses, one slightly canted over in relation to the other. Something more complicated must be going on therefore to generate the spiral patterns.

To draw the spirals, you have to use the assumption that the Earth is fixed: they are a description of the movement of Venus RELATIVE TO Earth over several years. 

(more detail on how this is drawn at source)

One critical difference between the spirals just above and OP’s original post is the addition of lines. These lines are drawn to connect the Earth to Venus at all points of their respective orbits. Watch this video to see the spiral drawn with the connecting lines shown.

THEREFORE: the spiral pattern is relative: our perception of Venus, not its reality.

Lastly, cite your sources please.

For teaching: astronomy, astrophysics

science-junkie:

The amoeba Entamoeba histolytica, in green, takes a bite out of a human cell, outlined in pink. (via sciencemag.org)
This scares me out of my wits
Excuse my French, but this little shit, E. histolytica, —responsible for a diarrhoeal disease that causes thousands of deaths each year in the developing world— kills intestinal cells through trogocytosis, namely, gnawing them. 
Researchers, at the University of Virginia in Charlottesville, discovered that the amoeba bites the living cells to the death (which happens for excess damage) and then… the amoeba spits them out. 
Fierce protists are, indeed, dreadful creatures.


For teaching: cell biology

science-junkie:

The amoeba Entamoeba histolytica, in green, takes a bite out of a human cell, outlined in pink. (via sciencemag.org)

This scares me out of my wits

Excuse my French, but this little shit, E. histolytica, —responsible for a diarrhoeal disease that causes thousands of deaths each year in the developing world— kills intestinal cells through trogocytosis, namely, gnawing them. 

Researchers, at the University of Virginia in Charlottesville, discovered that the amoeba bites the living cells to the death (which happens for excess damage) and then… the amoeba spits them out. 

Fierce protists are, indeed, dreadful creatures.

For teaching: cell biology

astronomy-to-zoology:

Genus: Arsinoitherium

…an extinct genus of paenungulate mammals that lived during the late Eocene and the early Oligocene of northern Africa. Although Arsinoitherium looks like a rhinoceros its actually more closely related to elephants, sirenians, desmostylians and hyraxes. Arsinoitherium boasted a pair of enormous knife-liked horns that projected from above their nose, their exact function is unknown but it is suggested that they might have been hollow and used as a sound resonator. Arsinoitherium probably inhabited tropical rainforests and mangrove swamps and would of feed on plant matter. Their large size would of rendered them immune to predation. However, creodonts might have preyed on their young and sick.

Phylogeny

Animalia-Chordata-Mammalia-Afrotheria-Embrithopoda-Arsinoitheriidae-Arsinoitherium

Images: Roman Uchytel and Aram Duylan

For teaching: evolution (history of life / phylogeny / extinction)