1701
A unique chamber filled with cut feathers provides the viewing material for this side-lit precision kaleidoscope by Carol Verde-Paretti
[source, read more: buff.ly/3rxtwAx]
1702
What does a baby rhino sound like? Certainly not anything like we thought they would. If we had to describe their sound, it would probably be a cross between dolphins and when you pinch the neck of a balloon to let the air out [full video by DoctorDuni: buff.ly/2p2JB4t]
1703
This sculpture of Franz Kafka's head created by artist David Černý in Prague weighs 45 tons and it's fully self-rotating
[source, full video: buff.ly/1USJQ7l]
1704
This is not a photo of Antarctica from space, but it's even better: it's a composite from several different NASA Earth-observing satellites, which created a set of information what wouldn't be visible with a simple picture
[read more: ow.ly/7nz650EdAvj]
1705
The city is alive: this site allows you to watch the dynamics of Manhattan's population, hour-by-hour: manpopex.us
1706
This clip captured by Epic Lava on Kilauea volcano, shows lava breaking out from a lava tube, a natural conduit passing beneath the hardened surface
[read more: buff.ly/3s6B12G]
[source, Epic Lava: buff.ly/3swXc0c]
1707
A mechanical demonstration of the chaos theory with the chaotic magnetic pendulum
[read more: buff.ly/2S96AZb]
[📹 wesphysdemo: buff.ly/2t1ouxL]
1708
‘Liquindi‘ is a type of Pygmy music played by Baka Forest People in Central Africa. They perform the pre-hunt song in the dawn hours to attract animals using the river as a drum [source and full video: buff.ly/2MUWOnO]
1709
VeinViewer allows physicians to see beneath a patients skin & helps take some of the pain away when getting a needle by projecting near-infrared light that's absorbed by the blood and rejected by the surrounding tissue [read more: buff.ly/3EmUum6]
1710
What Intel put on for its 50th anniversary back in 2018 is still impressive: the drone team broke a world record flying thousands of Shooting Star™ drones to create one of the biggest and brightest synchronized drone light show on Earth [source: buff.ly/2vJNATL]
1711
In this 1843 letter to Charles Babbage, Ada Lovelace proposes a calculation that "may be worked out by the engine without having been worked out by human". It is the first time that the principle of the computer program had been set out in writing buff.ly/3Eh0Tz4
1712
The Antonov An-70 is a medium and long-range four-engine transport aircraft designed in the 1990s. One of the special features of this aircraft is its propulsion with contra-rotating propellers, the first group comprising 8 blades, the second 6 [source: buff.ly/3EPxedB]
1713
How player ChrisDaCow created a universe inside Minecraft with a black hole, galaxies, and pillars of creation included
[full video: buff.ly/3MhbQ5B]
1714
Plasma tornadoes on the Sun can reach a height of 125,000 miles and rotation speeds up to 186,000 miles per hour [read more: buff.ly/2KBvER3]
1715
In the fall, changes in the length of daylight & temperature cause the chlorophyll to break down: the green color disappears & the yellow to orange colors become visible
[read more: buff.ly/3Mdl7vE]
[📹 Justin McFarland: buff.ly/2RsCuLU]
1716
How a canoe can move without paddles? What can look like a violation of momentum conservation, actually tells us how the hull drag can be exploited as an inverted reaction [read more: buff.ly/2S43TIj] [source, full video, Paddle & Portage Canoes: buff.ly/35Q901T]
1717
"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]
1718
Following simple programmed rules, these autonomous robots assembled at Harvard University, arrange themselves into vast, complex shapes
[source, read more: buff.ly/2HVLA2Y]
1719
When a star strays too close to a black hole, intense tides break it apart into a stream of gas. The tail of the stream escapes the system, while the rest of it swings back around, surrounding the black hole with a disk of debris [source, NASA: buff.ly/2m0ysiY]
1720
Crinoids are passive suspension feeders, filtering plankton and small particles of detritus from the sea water flowing past them with their feather-like arms
[read more: buff.ly/2xnWr1a-]
[📹 Marcelo Johan Ogata: buff.ly/3GwS6qo-]
1721
This periodic table shows you the physical state of each element at a given temperature (plus properties, orbitals, isotopes and more) [visit: ow.ly/v70v30nyIpX]
1722
Ever wondered why your fingers go wrinkly in water but not other parts of your body? It's not a simple reflex or the result of osmosis. Our fingers wrinkle in water due to an evolutionary response that enhances our grip underwater [read more: bbc.in/1UopCzM]
1723
This is the note that Jimmy Carter placed on the Voyager
spacecraft in 1977 [read more: bit.ly/2fhGXzu]
1724
The derivative of the sine function is the cosine function: this is a visualization ot how the cosine is the slope of the line tangent to the sine fuction [read more: ow.ly/3XVz30nyU9E]
1725
Researchers have developed a handheld 3D skin printer that deposits even layers of skin tissue to cover and heal deep wounds. The team believes it to be the first device that forms tissue in situ, depositing and setting in place, within two minutes or less buff.ly/2rge8ZD
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links