Posts tagged "science"

jtotheizzoe:

via science-junkie:

Prince Rupert’s drop

The prince Rupert’s drop is a truly amazing thing.When molten glass hits cold water, its outer surface cools rapidly and shrinks as it solidifies. Since the center is still fluid, it can flow to adjust to the outer shell’s smaller size. As that center eventually cools and solidifies, it also shrinks, but now the outer shell is already solid and can’t change its shape to accommodate the smaller core. The result of this is a high amount of internal pressure, as the inside pulls the outside from all directions the glass is set to release a lot of energy. If you break the thin glass at the tail, a chain reaction travels like a shock wave through the drop. As each section breaks, it releases enough energy to break the next section, and so on, shattering the whole drop in less than a millisecond. At the same time The glass can be extremely strong aswell glass breaks when tiny scratches pull apart and spread into fractures. Since the surface is compressed by internal stress, scratches can’t grow, and the glass is very difficult to break.

Credits: ScienceCubed - http://sciencecubed.tumblr.com/ 

People, if you haven’t seen Destin from Smarter Every Day shatter these things at 130,000 frames per second, you haven’t truly lived.

thekidshouldseethis:

How energetic can a severed tail be?” We’re about to find out: This is the Red-Tailed Vanzosaur, a lizard with stripes and brilliantly colored tail. Dr. Jonny Miller, UK biologist based in Paraguay, South America, demonstrates the vanzosaur’s simple survival skills in the video above, and continues to blog about his adventures in the field at planetparaguay.com

Previously from Dr. Miller: the common potoo

jtotheizzoe:

petervidani:

The collision between the Milky Way Galaxy and the Andromeda Galaxy.
See also: Timeline of the far future, Milkomeda

Related to yesterday’s post about the night sky in 7 billion years.

This is beautiful and amazing and I can’t stop thinking about it.

jtotheizzoe:

petervidani:

The collision between the Milky Way Galaxy and the Andromeda Galaxy.

See also: Timeline of the far future, Milkomeda

Related to yesterday’s post about the night sky in 7 billion years.

This is beautiful and amazing and I can’t stop thinking about it.

michaelgizzi:

Creationism — Its not appropriate for children.   

THANK YOU Bill Nye, you really are THE SCIENCE GUY! 

crazyanimator:

I’d vote for them! :)

jtotheizzoe:

That’s right, our favorite science guy (me excluded) is over at Reddit doing an IAmA! This should prove to be an awesome one … the questions are flowing in at warp speed, though:

Just in case he doesn’t get to your question, what would you ask him?