1
Slow motion (mirrored) art
[📹 仙奴视角: buff.ly/3GiaXak]
2
The story of Thomas Fuller, also know as "the Virginia calculator", the African man sold into slavery in 1724 at the age of 14, and known for his extraordinary ability to solve complex math problems in his head
[read more: buff.ly/3ZjdNoo]
3
Division by zero is a mathematical challenging concept: see what happens when you try in on a mechanical calculator
[source, read more: buff.ly/3lvqQkX]
4
Digital effects are no match for designer Tomohiro Okazaki: this animation uses stop-motion techniques to animate paint, strips paper, and other household objects under the matchsticks' control
[YT: buff.ly/3ipcHGL]
[IG: buff.ly/3X7Wy85]
5
Sperm whales need to be on the lookout for predators, and sleeping in a vertical position helps them to do this. Moreover, their blowhole is above the water, so they can take a quick breath if they need to
[📹 Nadya Ali: buff.ly/3QiarxP]
6
Candles burns thanks to a combustion reaction that requires oxygen (O₂). When you pour a cup of CO2 over the candles, this displacesall the normally mixed air, along with all that O₂ the fire needs to burn.
[read more: buff.ly/3GLOBzC]
7
The C-17 Globemaster can carry 77,519 kg (170,900 lb) of cargo with a maximum takeoff weight of 265,352 kg (585,000 lb)
[read more: buff.ly/3X8eOxw]
[📹 FRAproductions: buff.ly/3GtSjwu]
8
CMYK, explained
[read more: buff.ly/2KlUe9l]
[source: buff.ly/3VQLL0k]
9
This article was published on April 18, 1963, in the News-Journal, a newspaper out of Mansfield, Ohio which tells us the concept of a cellphone existed long before you held one in your hand
[read more: buff.ly/3wH1Olg]
10
Elevation and depth of
- Great Lakes
- Lake Baikal
- Lake Titicaca
[source: buff.ly/3WPM1OE]
[Great Lakes only: ow.ly/v5O430nURHW]
11
The iodine clock reaction is a classical chemical clock demonstration experiment to display chemical kinetics in action; it was discovered by Hans Heinrich Landolt in 1886
[read more: buff.ly/2O7T6rg]
[📹 Mr A Shepherd]
12
"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]
[📹buff.ly/3imObWT]
13
There’s a tiny, innocent-looking rodent called the grasshopper mouse who kills highly venomous arthropods like scorpions and forcipules and it howls at the moon to claim its territory
[videos + read more: buff.ly/3RnIkNh]
14
Over the course of 3 days scientists pumped 10 tons of cement into an abandoned ant hill. After weeks of digging, the colony’s intricate & impressive structure is revealed. This one
[full video, from "Ants! Natures Secret Power": buff.ly/2ICATyB]
15
Pyrex & vegetable oil both have refractive indexes of 1.47 & air is at ~1.00. If we combine substances with different refractive indexes, we can see some interesting effects, like a pyrex beaker suddenly disappearing
[read more: buff.ly/3742moi]
16
Buzz Aldrin & Neil Armstrong put a mirror on the moon an hour before the end of their final moonwalk. It is the only Apollo science experiment still running. Today we can 'ping' the moon with laser pulses and measure the Earth-moon distance very precisely buff.ly/2YRCs3M
17
Wood planing is the art of shaving wood into very thin strips: a select group of experts in Japan compete to shave off the thinnest piece of wood possible. This video by xtol.ren shows how it's done
[source: buff.ly/3eoSUVJ]
18
Very rarely a roll cloud can turn into a spherical cloud, like this one observed over Japan in December 2016
[read more: bit.ly/2A52Hb0]
19
Molokini is a crescent-shaped, partially submerged volcanic crater which forms a small, uninhabited islet located within Maui County in Hawaiʻi. It is the remains of one of the seven Pleistocene epoch volcanoes that formed the prehistoric Maui Nui island buff.ly/2ZuFTj7
20
Atelopus barbotini is a species of toad endemic to the uplands of central French Guiana. The frog's skin is covered with irregular fluorescent lavender loops over a background of aubergine, which is the deep reddish purple-brown color of aubergines buff.ly/35tk0Vd
21
Unable to enroll in a regular institution of higher education because she was a woman, Maria Skłodowska Curie & her sister Bronisława studied thanks to the clandestine Flying University, a Polish institution of higher learning that admitted women students ow.ly/r9Ct30ojqbq
22
Icelandic black sand is found on beaches near a volcano and consists of tiny fragments of basalt
[read more: buff.ly/3wLzKhQ]
[📹 Lorenz Weisse: buff.ly/3wUa18q]
23
Lightning, for obvious reasons, is difficult to study. But these scientists have rigged together a contraption that enables them to make their own bolts of electrical power on demand. Their method: walk into a storm and send up a rocket on a string buff.ly/2u15Ea6
24
172 years ago #Today, the rotation of the Earth was experimentally proved by Leon Foucault. After weeks of work, he recorded in his journal that he made this discovery at 2:00 am working with a pendulum in the cellar of the house he shared with his mother buff.ly/2MEJlUM
25
The terrifying moment a car was struck by lightning in Morocco in 2017 and the relieving moment a crowd gathers around within seconds to help
[read more: buff.ly/3jUEK1m]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links