426
Anodizing titanium generates an array of different colors which are dependent on the thickness of the oxide and determined by the anodising voltage
[read more: buff.ly/2Py1DUF]
[📹 buff.ly/3eHdXDa]
427
Captured by Simon Buxton, this underwater video shows a blanket octopus unfolding and displaying a colorful web multiple times its original size
[full video: buff.ly/31UsssO]
428
Rabbits can swim
Some breeds adapted to live in wet environments, and regularly swim in their day-to-day lives
[read more: buff.ly/3gNq0N5]
[source: buff.ly/3BnSGFE]
429
"Persistence of vision display" or POV display are LED devices that compose images by displaying one spatial portion at a time in rapid succession. One example are Hologram Fans
[read more: buff.ly/3ykp0cd]
[📹US Gadgets: buff.ly/3fLsGgE]
430
The Healesville Sanctuary, Victoria, Australia, is one of only two places to have successfully bred a platypus. The first platypus bred in captivity was born in the Sanctuary in 1943
[📹: buff.ly/3ftlvd0]
[read more: buff.ly/3CnLFqH]
431
Photographer Joseph DiGiovanna took a video of every sunrise in 2022
[source: buff.ly/3Z712wP]
432
5 years ago #Today, @CassiniSaturn reached the end of its pluriennial mission in space. A mission meant to last 3 years in orbit around Saturn, and instead the spacecraft spent 13 years, 76 days there, closing with a Grand Finale [360° coverage: buff.ly/2xe4XwK]
433
A modern version of the Galton Box invented by Sir Francis Galton in 1894, built to demonstrate the Central Limit Theorem - showing how random processes gather around the mean [source, read more: buff.ly/3CyKlzY]
434
This clip by Gelmini Macchine shows a Parmesan cheese cutting line at work
[full video: buff.ly/3H1MOUI]
435
Burning steel wool makes it heavier. Why? The increase in mass comes from the additional oxygen that combines with iron to form a new solid, iron oxide.
Fe(s) + O₂(g) ➝ Fe₂O₃(s)
In other words, fast rusting.
[read more: buff.ly/2QJ21Bc]
436
You may never have heard of the plant Brassica Oleracea, but six vegetables you can find in any grocery store and you eat on a regular basis are actually all from this one plant and they're all human made products of selective breeding [source, read more: buff.ly/3F8yOXl]
437
Watch Delta Robot (right) and compact LR Mate 200iD robot (left) sort and move sets of four batteries with mesmerizing, seemingly-endless rhythm
[source: buff.ly/2ZVYkig]
438
Physics says energy would be lost due to inefficiency of the wheel, and it wouldn't make a complete loop with the bird on it. This cockatoo actually learned to move in a way that adds energy to the system, allowing it to make a complete loop [full video: buff.ly/2RYkPel]
439
Stephen Cunnane made this clip to help breakdown animal gaits for animators and artists, but it's very useful to learn how dogs walk too
[full video: vimeo.com/215637283]
440
Dendrosenecio kilimanjari is a giant groundsel found atop Mount Kilimanjaro in Africa. The giant grounsels of the genus Dendrosenecio evolved, about a million years ago, from a Senecio that established itself on Mount Kilimanjaro
[read more: ow.ly/A2PL50Bdw1F]
441
Watch people play ‘Pong’ on a rock wall with Augmented Climbing
[source: ow.ly/E6Ug50Am51h]
[read more: valomotion.com]
442
Lindsey Swierk documented that the water anole can breathe under water for long periods of time to avoid predators through an underwater respiration system using a recycled air bubble that clings to the anole's head
[read more: buff.ly/3CWg2la]
443
Chaos in the double pendulum system is shown and the sensitive dependence on initial conditions of the motion of the double pendulum can also be seen
[source, read more, Wesleyan University Dept. of Physics: buff.ly/34QJihw]
444
This popular video filmed in 2011 in the General Motors lab at the University of Pennsylvania by YT's oneXatXaXtime, shows how food coloring in glycerine is mixed by turning a drum, then unmixed by reversing [source: buff.ly/3fzN29a] [explanation: buff.ly/2S22Y75]
445
LEGO machine for making domino runs. Each 'domino' is a stack of 5 1x3 LEGO bricks.
[📹 JK Brickworks: buff.ly/3hkt4ns]
446
'Relativity' is a lithograph print by artist M. C. Escher, first printed in December 1953. It depicts a world in which the normal laws of gravity do not apply. This is an animated version of the famous artwork
[source: buff.ly/3xkiJO2]
447
An immense fever of rays. These large groups can reach up to 10,000 individuals. They come together for breeding and migration, swimming to feeding grounds each year
[read more: buff.ly/3Afp9xL]
[📹 Paul Nicken: buff.ly/3QJvLf5]
448
A 196-day time lapse of an oak tree sprouting from an acorn
[full video, HD, Box Lapse: buff.ly/3xDgwMn]
449
Vincent Bal is "shadowologist" and filmmaker: he uses the shadows of ordinary objects to complete his artwork
[Instagram account: buff.ly/2tsOhi4]
450
This photo captures a remarkable moment: the Colima volcano erupting in a plume of ash and lava as lightning strikes, illuminating the scene against a sky filled with stars
[Sergio Tapiro, 2016: buff.ly/2wTwMcI]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links