1451
How locks and keys work
[video: buff.ly/2gRz85Q]
[gif: buff.ly/2Ea4Jue]
1452
Designer Erik Åberg wanted to recreate the concept of origami out of wood, focusing on how the objects moved. During his experiments he devised this system of interlocking, moveable cubes called GHOSTKUBE
[read more: erikaberg.com]
1453
Flow Hive is a beehive designed to allow honey to be extracted simply by turning a lever: the hive does not have to be opened and the bees are not disturbed as in normal extraction
[read more 1: honeyflow.com]
[read more 2: buff.ly/302Vvet]
1454
The science of chapati, the expandable flatbread from the Indian subcontinent [read more: buff.ly/2It36Yp]
1455
There's a marvelous geyser in Nevada which was accidentally created during a well drilling in 1964
[read more: bit.ly/2cGLTil]
#FlyGeyser
1456
In 1935, quarry workers at Porthmadog, North Wales were transported to the top via cable car. To get them back down to the bottom at end-of-shift, this no-energy way was devised
[source: buff.ly/3yZgZd5]
twitter.com/specializetool…
1457
Artist Sergi Cadenas realizes three-dimensional oil paintings which vary depending on the viewer’s perspective, introducing a kinetic, disturbingly suggestive dimension to our vision of reality [more artworks: galeriaiturria.com/cadenas]
1458
Artist jeson7598 (Döuyin) paints 3D artworks using forced perspective transforming trees in camouflaged optical illusions brilliantly blending with the surronding environment
[source, more clips: buff.ly/3yTGQmE]
1459
How high you would jump on other planets or moons?
[📹 MetaBallStudios: buff.ly/3Jzo5sW]
1460
The story of the 'Cheddar Man', a 10,000-year-old skeleton found in a cave in Cheddar, England and of the history teacher (living 1 km away from the cave) who was found sharing the prehistoric man's DNA in a 300-generation-long kinship
[read more: buff.ly/3CP3lu3]
1461
The armadillo girdled densive behavior consists in grabbing its tail in its mouth and curl up into a ball. Its genus name 'Ouroborus' comes from the mythical serpent that eats its own tail
[read more: buff.ly/2DISYHC]
[📷 Daniel Zupanc: buff.ly/3yUwbs2]
1462
The proton is an object of unspeakable complexity, one that changes its appearance depending on how it is probed. Sometimes it includes a charm quark and charm antiquark, colossal particles that are each heavier than the proton itself [read more: buff.ly/3VGgs9z]
1463
Why is A4 paper called A4? 'Cause of #Math
A4 is 1/2 an A3, 1/4 of A2 & it’s 1/16 of A0 which has an area of 1 m² (but it isn’t a square).
They all have an aspect ratio a/b = √2, so each one can be scaled to other sizes without being distorted
[more: buff.ly/3TdKWOE]
1464
This is what happens if you burn calcium gluconate on a stove [note: sped up video]
[source, read more: buff.ly/3yV3LOq]
twitter.com/chemicalsreact…
1465
Photographer Joel Sartore captured this footage of a Horsfield’s tarsier at Taman Safari in Indonesia. It's a carnivorous, nocturnal species of tarsier living in Borneo and Sumatra
[read more: buff.ly/30Ts8yg]
[source: buff.ly/3EvElXW]
1466
The stunning optical illusions by prof. Kokichi Sugihara
[video: buff.ly/2UzhxAB]
[read more: buff.ly/2HthCRt]
1467
The Barsha Pump created by aQysta can pump 43,000 liters of water a day to villages over 2 km away. It requires no electricity to operate and does not emit any pollution either
[read more: buff.ly/3g9mbo6]
1468
Melissani Cave is located on the island of Kefalonia, in the Ionian Sea. Some say the water is so clear the boats look like they are floating on air, like this picture by Dionisis Kaminaris seems to confirm buff.ly/2OWUbDh [source of the photo: buff.ly/2X0WqKh]
1469
You can actually kind of 'suction' plasma with a Tesla coil and a syringe helped by a nail [source and full video, by ElectroBOOM: buff.ly/2IvYXD0]
1470
There are 12 black dots at intersections in this image. Your brain won’t let you see them all at once. Here's why [read more: bit.ly/2qxnuj5]
1471
If you take a look at the cut section of a red cabbage, you will certainly notice the fascinating and intricate pattern hidden within: in other words, a fractal [source, photo by Yiran Wang: buff.ly/3stz54w]
1472
This video by Magnetic Geames features a series of remarkable slow motion magnet collisions [source and full video: buff.ly/2IPnre2]
1473
Phyllocrania paradoxa, common name ghost mantis, is a small species of mantis from Africa remarkable for its leaf-like body. It comes in various brownish shades from very dark brown to greenish gray [read more: buff.ly/39qY4tL] [source of the gif: buff.ly/3pjbYI6]
1474
How you can demonstrate the presence of iron in cereals and in common food by using some strong magnets and a bowl of water [full video by funsciencedemos: buff.ly/332MyAJ] [it also works with the magnet OUT of the water: buff.ly/2PyaGYg]
1475
Yes, the 1950s were definitely a simpler time
[read more on snopes.com: bit.ly/2aPjHUw]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links