Light reflects off feathers of hummingbirds
wallacepolsom
Mike Driver
Sade Olutola
Aqua Utopia|海の底で記憶を紡ぐ
PUT YOUR BEARD IN MY MOUTH

roma★

titsay

oozey mess
NASA
let's talk about Bridgerton tea, my ask is open
Misplaced Lens Cap
tumblr dot com
Xuebing Du
Sweet Seals For You, Always
Jules of Nature

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if i look back, i am lost

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@twitchrat
Light reflects off feathers of hummingbirds

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Chain effect
Physics + Chemistry: Ferrofluid 3/3
Source: Compilariz on YT
Fibonacci all day, every day [http://bit.ly/2jiUBF6]
There are many beautiful ways to visualize sound and music – Chris Stanford’s fantastic “Cymatics” music video comes to mind – but this is one I haven’t seen. This visualization uses a soap film on the end of an open tube with music playing from the other end. You can see the set-up here. The result is a fascinating interplay of acoustics, fluid dynamics, and optics. As sound travels through the tube, certain frequencies resonant, vibrating the soap film with a standing wave pattern (3:20). At the same time, interference between light waves reflecting off the front and back of the soap film create vibrant colors that show the film’s thickness and flow.
When the frequency and amplitude are just right, the sound excites counter-rotating vortex pairs in the film (0:05), mixing areas of different thicknesses. With just a single note, the vortex pairs appear and disappear, but with the music, their disappearance comes from the changing tones. Watching the patterns shift as the film drains and the black areas grow is pretty fascinating, but one of the coolest behaviors is how the acoustic interactions are actually able to replenish the draining film (2:15). Because the tube was dipped in soap solution, some fluid is still inside the tube, lining the walls. With the right acoustic forcing, that fresh fluid actually gets driven into the soap film, thickening it.
There are several more videos with different songs here – “Carmen Bizet” is particularly neat – as well as a short article summarizing the relevant physics for those who are interested. (Video and research credit: C. Gaulon et al.; more videos here)

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In their newest video, the Slow Mo Guys recreated one of my favorite effects: vibration-driven droplet ejection. For this, they use a Chinese spouting bowl, which has handles that the player rubs after partially filling the bowl with water. By rubbing, a user excites a vibrational mode in the bowl. Watch the GIFs above and you can actually see the bowl deforming steadily back and forth. This is the fundamental mode, and it’s the same kind of vibration you’d get from, say, ringing a bell.
Without a high-speed camera, the bowl’s vibration is pretty hard to see, but it’s readily apparent from the water’s behavior in the bowl. In the video, Gav and Dan comment that the ripples (actually Faraday waves) on the water always start from the same four spots. That’s a direct result of the bowl’s movement; we see the waves starting from the points where the bowl is moving the most, the antinodes. In theory, at least, you could see different generation points if you manage to excite one of the bowl’s higher harmonics. The best part, of course, is that, once the vibration has reached a high enough amplitude, the droplets spontaneously start jumping from the water surface! (Video and image credits: The Slow Mo Guys; submitted by effyeah-artandfilm)
512-Magnet Cube!
Toying with some nanodot magnets. I love these, they are great to fiddle with, but can be a little frustrating if you want a certain shape. i like pulling them apart and then letting them click back together again.
Soft sounds of beads clicking together.
A video of my homemade iridescent glitter jar with a thickened sugar-syrup liquid.
Some soft sounds of jar being shaken and being placed on table.
Spiral Kinetic Art

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Snake Twist Necklace
[Image description: A silver and gunmetal (dark grey) colored necklace, seemingly made of wire, is twisted into an artistic shape. In the second picture, the necklace is extended out all the way. The third picture has it bent into a sort-of valentine heart shape. All of the pictures have a black dishtowel as the background]
The snake twist necklace is a necklace with the malleablilty of wire; as such, it can be bent and twisted into all sorts of shapes. Wear it as a necklace, a stylish bracelet, or just play with it for the ultimate inconspicuous stim toy! The wire bends easily (more so than a Bendeez), and won’t snag hair or clothing. Available in a variety of colors, the twist is about 15" long when fully extended (it is a continuous loop).
Purchased from: Stimtastic.co
Price: $$ (between $6-$10USD, shipping not included)
[Source]
@capacity
Love physics
🌙 far out
“if you have a bit of stress then you can use this, but if you have a lot of stress use this one”

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