1651
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]
1652
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]
1653
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]
1654
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]
1655
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]
1656
The stunning optical illusions by prof. Kokichi Sugihara
[video: buff.ly/2UzhxAB]
[read more: buff.ly/2HthCRt]
1657
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]
1658
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…
1659
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]
1660
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]
1661
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]
1662
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]
1663
How high you would jump on other planets or moons?
[📹 MetaBallStudios: buff.ly/3Jzo5sW]
1664
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]
1665
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]
1666
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…
1667
There's a marvelous geyser in Nevada which was accidentally created during a well drilling in 1964
[read more: bit.ly/2cGLTil]
#FlyGeyser
1668
The science of chapati, the expandable flatbread from the Indian subcontinent [read more: buff.ly/2It36Yp]
1669
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]
1670
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]
1671
How locks and keys work
[video: buff.ly/2gRz85Q]
[gif: buff.ly/2Ea4Jue]
1672
Pulled string art is a simple technique that uses paint and a strings to obtain remarkable and always unexpected results [read more: buff.ly/2It4CJT]
1673
These are the stones that can be found on the ice of lake Baikal in the area of the Sarminsky gorge. During the day the stones get heated by the sunlight and melt the ice beneath. In the evening the water freezes, creating a small stand for the rock weerwoord.be/m/2468683 (NL)
1674
A journey to the heart of matter by CERN
[read more: buff.ly/3gjMxE6]
1675
Yakisugi (焼杉) is a traditional Japanese method of wood preservation. By slightly charring its surface without combusting the whole piece, the wood becomes water-proof through the carbonisation & is thus more durable
[read more: buff.ly/3s4MheV]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links