1451
The story of the ingenious cheating system involving pens used by a law student at the University of Malaga, Spain and of the amazingly carved BIC pens later confiscated
[full story: buff.ly/3evcBvw]
[📷 Yolanda De Lucchi: buff.ly/3yFyhfa]
1452
The bacterial flagellar motor is the nature's version of the electric motor and can rotate at speeds in excess of 30,000 rpm [source: ow.ly/iM7a30n8fpg]
1453
If tuned to the same frequency, striking a tuning fork sets up a sympathetic vibration in the other, shown by a ping-pong ball attached to a thread
[read more: buff.ly/2GegL7J]
[resonance box: buff.ly/3ni5ruY]
[📹 buff.ly/3rN59is]
1454
Jules Verne wrote a novel in 1863 which predicted gas-powered cars, fax machines, wind power, missiles, electric street lighting, maglev trains, the record industry, the internet, and feminism. It was lost for 131 years & just published in 1994 buff.ly/2nh9g8R
1455
Plants do actually move: we just don't live in the same time reference frame. This 2-day time lapse shows the so called plant's nastic movements, mostly due to changes in turgor or changes in growth buff.ly/30a2rqp [source: buff.ly/3HBFC1o]
1456
Pictured here is one of the most striking images yet recorded of a waterspout, a type of tornado that occurs over water. It was taken by Joey Mole in July 2013 near Tampa Bay, Florida [source: buff.ly/2zIYgqA]
1457
Researchers found that when a champagne bottle is uncorked, the CO₂ and water that is released creates under-expanded supersonic CO₂ freezing jets. This is actually the formation of a Mach disk during champagne cork popping [read more: buff.ly/2kBr7G7]
1458
This is a coloured scanning electron micrograph (SEM) of a red blood cell (erythrocyte) squeezing through a capillary. This is where the oxygen-exchange with the surrounding tissues happens. Magnification: x9000 [source: buff.ly/2pkUVFT]
1459
Tampa Bay water receded ahead of Hurricane Ian. It's physics on a large scale: winds are swirling counter-clockwise as it moves northward along the peninsula, so its winds are whipping the water away from the shoreline [more: buff.ly/3E1VRWP]
1460
When you think of a typewriter, you might have in mind a very simple, standard model, but when it comes to a Japanese machine, the number of characters makes it completely different. This MAC-M45 has 2200 characters [full video: buff.ly/3aWmNbM]
1461
Wildlife photographer Will Burrard-Lucas captured this rare black leopard at night with strategically placed remote cameras in Laikipia County, Kenya [source, blog of the author: buff.ly/3kFLBYC] [author's site: willbl.com]
1462
Antennas for AM radio stations in the medium-wave band are generally the entire tower structure, as opposed to the towers for FM and TV station. The ball of plasma acts like a speaker and you can listen to the radio
[📹 read more: buff.ly/3E37yg6]
1463
Chameleons have the most distinctive eyes of any reptile. Each eye can pivot and focus independently, allowing the chameleon to observe two different objects simultaneously
[read more: buff.ly/2q4wcW1-]
[source: buff.ly/3HjhktS-]
1464
The story of Norman Borlaug, man who won a Nobel Peace Prize for his work developing “semi-dwarf, high-yield, disease-resistant wheat varieties” and is credited with saving over a billion people from starvation
[read more: buff.ly/2IvPbnJ]
1465
Why do people often stick their tongue out when they are concentrating on something? It turns out much of your brain is devoted to your tongue and sticking it out or biting it leaves more brain-power available to concentrate
[source: ow.ly/pUSQ30nOIs7]
1466
Russia and the United States are only 2 miles apart, and during the winter, you can still walk between the two nations. There have been Chinese proposals to build highways and high-speed rail connecting Asia and North America the Bering Strait buff.ly/30c07zy
1467
Scotoplanes, alos known as sea pigs, live on deep ocean bottoms typically at depths of over 1,200–5,000 meters
[read more: buff.ly/3wWM3sT]
[📹: buff.ly/3RzzZFR]
1468
Like the classic bottle with holes, the water can flow from the blue straw only if the air pressure is enough to push the water out, or when the red straw is above the blue one. When below, no air pressure on the blue one
[📹buff.ly/3P5YzhM]
1469
You can make a phonograph with a piece of paper and a needle
[more detailed video DIY: buff.ly/3XH3JEA]
1470
The Japanese technique called Daisugi, enables foresters to grow more wood using less land and consists in heavy pruning of a mother cedar tree, which encourages tall, thin saplings to shoot upwards. In other words, think of it as a bonsai on a large scale ow.ly/ukzy50B0MO5
1471
Made in Zeitz, Germany in 1910s, sold by Carl Jost's company, this example of kerosene lamp-powered fan used hot air engine to power the blades instead of electricity [full videos by riderericsson: buff.ly/3deqp9b, buff.ly/3rpo5Vi]
1472
Cinematographer Dustin Farrell captured this F-22 with a Phamton Flex4K at 1000fps and a 1000mm lens
[source, more videos: buff.ly/3XYG96E]
1473
Swimming crabs (Portunids) have two sets of legs: the first set is used for walking on land, and the second set is used to help them swim underwater.
[read more: buff.ly/3BryMeG]
1474
The snow leopard is a felid native to the mountain ranges of Central and South Asia. Its global population is estimated in fewer than 10,000 mature individuals and is expected to decline about 10% by 2040
[📹 Muhammad Osama: buff.ly/3hVvgSp]
1475
This periodic table by Jennifer Johnson is color coded to indicate humanity's best guess as to the nuclear origin of all known elements
[source, read more: buff.ly/2XGx19h]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links