fuckyeahfluiddynamics:

Granular materials like sand are sometimes very fluid-like in their behaviors. The high-speed video above shows a ball bearing being dropped into packed sand. Many features of the splash are fluid-like; the initial impact creates a spreading crownlike splash, followed by a strong upward jet that eventually collapses back into the medium. At the same time, many of the impact characteristics are decidedly non-fluidic. Sand has no surface tension, so both the crown and the jet readily break up into small particles. The granular jet is very narrow and energetic, reaching heights greater than the impacter’s drop height. Interestingly, the column begins collapsing on its lower end before the jet even reaches its highest peak. This may be due to the lower energy of the sand particles that were ejected later in the crater formation process. (Video credit: J. Verschuur, B. van Capelleveen, R. Lammerink and T. Nguyen)

Repeat after me:

You are not an excuse.
You are not an apology.
You are not a distraction.
You are not an error in judgment.
God dammit if I have to be a mistake
then let it be by my own undoing.

Repeat after me:

I am not just another mistake.
I am not his mistake.
I am not somebody’s mistake.
I am not your mistake to make.

I am a woman. And this is my body,
it is not yours to touch.
And this is my soul,
it is not yours to break.
And this is my heart,
it is not yours to toy with.
I was not made - by God, the universe,
and the demons eating my insides -
to cure you of your loneliness.

If you want me,
have all of me
or none at all.

If you want me,
EARN ME
or walk the fuck away.

Sade Andria Zabala (xpsycho) | I Am A Woman, I Am Not A Mistake (via xpsycho)

jjfright:

nanodash:

nanodash:

Food colouring in corn syrup. Watch as they rotate it 5 times one way and then 5 times back.
Your mind is now blown.
This is an example of the strange things that happen in fluids with low Reynold’s number. Reynold’s number is a ratio of the inertial forces and the viscous forces in the fluid. When the viscosity is high and the inertial forces are low fluids behave very differently to the way we are used to. Remember that next time you are trying to swim in honey.

I giffed the original video for your viewing ease. Enjoy.

SCIENCE!

jjfright:

nanodash:

nanodash:

Food colouring in corn syrup. Watch as they rotate it 5 times one way and then 5 times back.

Your mind is now blown.

This is an example of the strange things that happen in fluids with low Reynold’s number. Reynold’s number is a ratio of the inertial forces and the viscous forces in the fluid. When the viscosity is high and the inertial forces are low fluids behave very differently to the way we are used to. Remember that next time you are trying to swim in honey.

I giffed the original video for your viewing ease. Enjoy.

SCIENCE!