coolsciencegifs:

The Tubeless Siphon

Certain non-Newtonian fluids which are elastic display a large resistance to extensional flow. Such behaviour leads to fluid flow arrangements which are simply not possible using ordinary Newtonian fluids. These flows manifest themselves in a variety of ways. 

In the so-called ”tubeless” syphon, a fluid can be made to flow up through an unsupported liquid column above the free surface of the liquid. One way to achieve this is by slowly withdrawing and raising a syringe from a pool of the liquid below.

In the ”open channel” syphon, after initially commencing the flow of an elastic fluid from a beaker, the fluid will continue to flow up the side and over the lip of the beaker for some time, despite the level of its free surface having fallen considerably below the top of the beaker. In this way, the slightest spill will cause the beaker to partially empty in what is commonly referred to as a ”self-syphoning” effect.

Source

(via logicianmagician)

zerostatereflex:

RED HOT NICKEL ON VARIOUS SUBSTANCES

Sooooo,..this guy heats up a round sphere of nickel and applies it’s red hot awesomeness to different mediums. And ah,..I love it.

In burning delicious order of appearance:

Canyons

World’s Largest Gummy Bear

Dry Ice

Ballistic Gelatin

Soap

Paper

Sugar

Rubberband Ball

(Source: youtube.com, via logicianmagician)

Tags: science

giantpredatorymollusk asked: If every cell in our bodies is replaced in seven years, how do tattoos stay on?

edwardspoonhands:

RIGHT!? Isn’t that FREAKING COOL! Your skin cells only last for a few weeks, and yet your tattoo lasts YOUR WHOLE LIFE! 

WELL! The outer layer of our skin is made of collagen, a flexible but durable protein. This is constantly sloughing off and being replaced from below as cells die leaving only their collagen-filled shells behind.

But when you get a tattoo, the needle punches past the outer layers of skin, doing quite a bit of damage. The result is that scar collagen forms around the dye that’s been placed in the dermis. Scar collagen, unlike skin collagen, doesn’t replace (which is why scars last forever.) The particles of ink are too large for white blood cells to surround them and carry them off to lymph nodes so they just sit there, surrounded by small amounts of scar collagen outside of your skin cells…pretty much forever. 

This is the key to tattoo removal, by the way. Lasers are used to break the ink into smaller bits, so your white blood cells can take care of them.

edgebug:

natti-karlo:

recovery-in-pink:

fitnesstreats:

Stand Like This for 2 Minutes Per Day
from http://jamesclear.com/body-language-how-to-be-confident

No, for real, though—this is a thing.  Not sure about the science behind it, but it makes me feel fancy and powerful regardless.  I highly recommend it.

There actually is legit science behind this. In fact, here’s an entire TED Talk about the science behind it, and the confidence-related chemicals that your brain produces JUST BY YOU STANDING LIKE THIS.

(Source: blog.urbanbohemian.com, via anxietycat)

jtotheizzoe:

wnycradiolab:

from89:

Radiation Physicist Colorizes X-Ray images

by Arie van’t Riet

Ooooooh.

We are all Supermen.

arsanatomica:

Inflating a set of cat lungs

Lungs are by most accounts mundane. Everybody has them, few give it much thought. But sequestered within darkness of the chest cavity, enveloping the fluttering heart, there’s a incredible wonder to this oddly inflatable organ.

Dissection is a destructive process. Rudely excised from membranous mooring and nourishing vessels, the deflated lungs appear little more than bloodied meat; amorphous and exposed…….until a breath of air unfurls its secret glory. 

Here, a set of cat lungs is inflated with a straw. Comprised of hundreds of millions of microscopic air sacks called aveoli, Mammalian lungs harbor air capacity that is difficult to believe unless seen. The color of the entire organ lightens into a soft pink, as each microscopic sac fills with air.

A debt of gratitude is owed to cyborgraptor for her assistance in creating these gifs, as well as the students that help me film this demo. 

(via logicianmagician)

#SCIENCE

love-madness-hope-infinite-joy:

psych-facts:

In a simple experiment, researchers at the University of Chicago sought to find out whether a rat would release a fellow rat from an unpleasantly restrictive cage if it could. The answer was yes.
The free rat, occasionally hearing distress calls from its compatriot, learned to open the cage and did so with greater efficiency over time. It would release the other animal even if there wasn’t the payoff of a reunion with it. Astonishingly, if given access to a small hoard of chocolate chips, the free rat would usually save at least one treat for the captive— which is a lot to expect of a rat.
The researchers came to the unavoidable conclusion that what they were seeing was empathy— and apparently selfless behavior driven by that mental state.
Source: http://0c6cada9.linkbucks.com

This makes me happy

love-madness-hope-infinite-joy:

psych-facts:

In a simple experiment, researchers at the University of Chicago sought to find out whether a rat would release a fellow rat from an unpleasantly restrictive cage if it could. The answer was yes.

The free rat, occasionally hearing distress calls from its compatriot, learned to open the cage and did so with greater efficiency over time. It would release the other animal even if there wasn’t the payoff of a reunion with it. Astonishingly, if given access to a small hoard of chocolate chips, the free rat would usually save at least one treat for the captive— which is a lot to expect of a rat.

The researchers came to the unavoidable conclusion that what they were seeing was empathy— and apparently selfless behavior driven by that mental state.

Source: http://0c6cada9.linkbucks.com

This makes me happy

(via rawjaatbackwards)

thatscienceguy:

Liquid Nitrogen on a surface coated with an aerogel powder resulting in some interesting properties.
Video

thatscienceguy:

Liquid Nitrogen on a surface coated with an aerogel powder resulting in some interesting properties.

Video

the-science-llama:

Helium is 6x lighter than air, which is why it makes your voice squeaky. This is what happens when you breathe something 6x heavier.