326
This ball by Nicholas Perillo made up of hexagon tiles, with 486 stepper motors, 86,000 LEDs and a 5 channel granular synth engine, combines the best of blinky LEDs and animatronics into one amorphic ball
[read more: buff.ly/3Lxkexd]
327
54 years ago #Today, three men were boldly going where no one had gone before. This is what Earth looked like in the Hasselblad photos taken more or less in the same hours, during the trans-lunar coast ow.ly/eCSA30n5c4p #Apollo8
328
Shoebill stork are normally silent, but they sometimes perform bill-clattering displays by clapping the upper & lower jaws, producing a loud hollow sound like a machine gun, or tribal drums beating
[source, Matsue Vogel Park: buff.ly/3fFVbtI]
329
#Today in 1882, the first string of electric lights decorating a Christmas tree was created for his home by Edward H. Johnson, an associate of Thomas Edison ow.ly/Spbd30n5jN5
330
Born 135 years ago #Today, Srinivasa Ramanujan had almost no formal training in pure mathematics but made substantial contributions to analysis, number theory and continued fractions, including solutions to mathematical problems considered to be unsolvable bit.ly/2zhi5ix
331
This is the kind of gimballed stove you use on a sailboat to compensate the waves induced motion
[📹 Michael.Thomas: buff.ly/3BTvWPz]
twitter.com/RnaSphere/stat…
332
This 1.5 -ton statue of Alan Turing was made by Stephen Kettle and was commissioned by the billionaire Sidney Frank. Located at Bletchley Park, it's made of about half a million pieces of slate quarried in Wales
[source: ow.ly/LxmR30obp8R]
333
This video by Bruce Yeany shows a nice collection of homemade marble tracks used to teach motion, acceleration, inertia, potential and kinetic energy but also explain that, with gravity, the shortest path is not always the fastest
[full video: buff.ly/3fDrCYt]
334
Beer is one of the oldest drinks humans have produced, dating back to at least the 5th millennium BC in Iran. This is a 4,000 year old beer receipt recording a purchase from a brewer, c. 2050 BCE from the Sumerian city of Umma in ancient Iraq [read more: ow.ly/n7bT30obqqq]
335
Even though the Boeing 787 has a maximum landing weight (201.8 tons), the landing gear is strong enough to absorb the impact of a landing up to the 250.8-ton maximum takeoff weight.
[📹 david_dar: buff.ly/3v6HgUv]
336
Turritopsis dohrnii is a species of biologically immortal jellyfish. If it is exposed to environmental stress, physical assault, or is sick or old, it can revert to the polyp stage. Theoretically this process can go on indefinitely
buff.ly/2EiGNXV
337
When the Space Shuttle was about 600 feet from the Space_Station the crew used to maneuver it through a backflip rotation to expose the heat shield to the station crew. This is Atlantis STS-129 in 2009
[source, video: ow.ly/WWGe50ogC3g]
338
I'm going to be re-hospitalized this afternoon for a planned intervention. I'll tweet according to time's availability and hope to be discharged in 2-3 days. Thanks for following and for your support.
339
Gyroscopes form an important in keeping the International Space Station and satellites pointing the right way as they orbit our planet. ESA astronaut Tim Peake shows how gyroscopes can be used to keep spacecraft stable
[read more: buff.ly/3HDaPBL]
340
How to trap lightning in a block (and release it with a simple hammer blow)
[read more: bit.ly/2rqr9RB]
[full video: buff.ly/2lJTuyM]
341
The library of Wiblingen Abbey near Ulm, Germany captivates with its unique ceiling fresco & decorated figures. It is considered a masterpiece of rococo style and one of the most world's beautiful libraries
[📹 baroqueblockbuster: buff.ly/3FKVH5J]
twitter.com/Enezator/statu…
342
To demonstrate how computers work, Alex Gorischek has made a physical example of how binary logic gates work using pulleys and weights. For anyone who doesn’t know much about logic gates, it’s a great lesson in one of the fundamentals of circuitry [video: ow.ly/WTvD30obozP]
343
As a part of every Shuttle launch, over 125 cameras were positioned all over the launch pad structure and around the perimeter of the complex to view how the vehicle performed and to catch views of any potential debris as the vehicle cleared the pad ow.ly/ubeY30oalzY
344
Prairie dogs, a species of rodent native to North America, live together in little villages of underground burrows. They have a language with over 50 unique words including ones for “human” and “human with gun”
[read more: buff.ly/2KwHQVV]
345
The Rayleigh scattering law tells us that the scattering of light is inversely proportional to λ⁴, which also tells us that the shorter wavelengths (like the blue light) are scattered more (1/λ⁴ is larger if λ is small) and this is why the sky is blue buff.ly/2KpHf8z
346
54 years ago #Today, Apollo 8 was launched: the first crewed spacecraft to leave low Earth orbit, reach the Moon, orbit it, and safely return go.nasa.gov/2h2mWLn
347
#Today in 2015, SpaceX flight 20 (also known as Orbcomm OG2 M2) was the first in which the booster of an orbital rocket made a successful return and vertical landing
[full coverage: buff.ly/3WtIg0y]
348
215 years ago #Today, Jean-Baptiste Fourier's memoir "On the Propagation of Heat in Solid Bodies", was read to the Paris Institute: an important mathematical work, containing what we now call Fourier series, which he had worked upon since around 1804 bit.ly/2pc4VE7
349
The 2022 December Solstice, the first day of winter in planet Earth's northern hemisphere and summer in the southern one, is #Today at 21:48 UTC
[read more: buff.ly/2A2nwUZ ]
[you can see a solstice from space: buff.ly/30ZoaBV]
350
Where does water really fall into? Great demonstration of rotational forces at work.
[📹 buff.ly/3jls5nX]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links