Harvard University and XVIVO have released this video of the inner workings of a cell. This is the most detailed and accurate depiction of proteins inside a cell that’s ever been made. Amazing stuff. Love seeing the jittery movements. These are slowed down so we can see what’s going on.
That busy jittering makes it an amazing animation. Remember; it’s really-really-really slowed down.
Can you feel the gravity?
This is the Best Presentation Ever Given
Hair straightener, by Amber Kates
That hair isn’t on fire. And the hair straightener isn’t smoking. We’re actually seeing changes in air density caused by the rising heat. Our eyes wouldn’t pick up on any of this. We would just see clear air — in other words, nothing.
Candle, by Andrew Kempchinskey / Lighter, Shaun McConnaghy
Burning hand sanitizer, by Nick Neumann / Marshmallow, by Benjamin Davis
These last two visualize flow that isn’t caused by heat:
Golf ball, by Joseph DeMartino / Soda, by Jena Pedersen
Here’s how these images were made:
The technique has a fancy, partly-German name: Schlieren Flow Visualization. It can be used reveal any change in air density. Engineers use it to test the aerodynamics of different vehicles, like this YT-1300 light freighter:
Looking at these videos got me thinking: Sound is just a moving compression wave. It creates areas of more dense air and less dense air. Could I use this technique to SEE sound?
Stay tuned for the answer!