explore-blog:

A vital reminder from the fourth episode of Neil deGrasse Tyson's Cosmos series.
Perhaps Bertrand Russell put it best in his 10 commandments of learning, where he admonished:

Have no respect for the authority of others, for there are always contrary authorities to be found.


Pair with Carl Sagan’s toolkit for critical thinking.

explore-blog:

A vital reminder from the fourth episode of Neil deGrasse Tyson's Cosmos series.

Perhaps Bertrand Russell put it best in his 10 commandments of learning, where he admonished:

Have no respect for the authority of others, for there are always contrary authorities to be found.

Pair with Carl Sagan’s toolkit for critical thinking.

humanoidhistory:

The unmanned Apollo 6 mission blasts off Cape Canaveral on April 4, 1968. (NASA)

splattergut:

Electrical oscillator by Nikola Tesla

jtotheizzoe:

This pi may be old, but it’s still delicious.  

Gah, I love vintage Coronet Instructional Films. You can watch the whole Coronet archive here, for free!

via okkultmotionpictures:

Happy OKKULT Pi Day


EXCERPTS >|< Meaning Of Pi (1949)


 | Hosted at: Internet Archive
 | From: A/V Geek Film Archive
 | Download: Ogg | h.264 | MPEG4
 | Digital Copy: Public Domain Mark 1.0

A series of Animated GIFs excerpted from Meaning of Pi (1949). The video Explains how pi denotes the ratio of a circle to its diameter, shows the use of circles in art, industry and commerce, outlines a procedure by which the numerical value of pi can be checked and reviewed, and describes the discovery and importance of pi.

We invite you to watch the full video HERE


Excerpts by OKKULT Motion Pictures: a collection of GIFs excerpted from open source/unknown/rare/controversial moving images.
A digital curation project for the diffusion of open knowledge.

>|<

kenobi-wan-obi:

vdB 152, Barnard 175

This image was obtained with the wide-field view of the Mosaic camera on the Mayall 4-meter telescope at Kitt Peak National Observatory. Also known as Barnard 175, vdB 152 is a reflection nebula atop of a dark Bok globule.
Embedded in the top right side of the nebula is the Herbig Haro object HH 450, a jet emitted from a newly forming star. The thin, red filaments in the upper-right corner of the image are the remnants of a supernova explosion.
It is not yet clear whether or not the supernova remnant will collide with vdB 152. The image was generated with observations in the B (blue), V (green), I (yellow) and Hydrogen-Alpha (red) filters.

kenobi-wan-obi:

vdB 152, Barnard 175

This image was obtained with the wide-field view of the Mosaic camera on the Mayall 4-meter telescope at Kitt Peak National Observatory. Also known as Barnard 175, vdB 152 is a reflection nebula atop of a dark Bok globule.

Embedded in the top right side of the nebula is the Herbig Haro object HH 450, a jet emitted from a newly forming star. The thin, red filaments in the upper-right corner of the image are the remnants of a supernova explosion.

It is not yet clear whether or not the supernova remnant will collide with vdB 152. The image was generated with observations in the B (blue), V (green), I (yellow) and Hydrogen-Alpha (red) filters.

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.

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.

for-all-mankind:

Images from yesterday’s sucessful Atlas V launch carrying the US Air Force’s DMSP F19 weather satellite. The payload itself had been sitting in a storage facility since the mid 1990’s, as previous satellite sin the series lasted longer than anticipated.

jtotheizzoe:

wearemadeofstarstuff479:

These boards are so pretty.

I would have no heart to erase them.

Totally forgot to carry the 2 there, pal.