1226
Penguins shoot 'fecal projectiles' up to 1.34 meters away from the nest to keep it clean. The birds can generate enough poo-propelling energy to send 'fecal bombs flying at speeds of nearly 5 mph (8 km/h) [read more: buff.ly/3iNLvgr]
1227
Sulfur hexafluoride (SF₆) is an extremely potent greenhouse gas and its density is much higher than air. It can create an invisible wave that wipes out several lit candles
[read more: buff.ly/2LBEfmX]
[📹 The Science Factory: buff.ly/3dzK8UY]
1228
This photo of two brothers in Sequoia National Park was taken moments before they got struck by lightning in August 1975 and it was used for years to warn about the dangers of pending lightning strikes [full story: buff.ly/2H3m1IA]
1229
Germanium (and germanium oxide) are opaque in visible light, but transparent in infrared. This clip demonstrate this property of the element
[read more: buff.ly/3T2SILu]
[📹 Cody's Lab: buff.ly/3T4mKPk]
1230
Airless tires, non-pneumatic tires (NPT), or flat-free tires are tires that are not supported by air pressure. This is the Michelin model buff.ly/30fgriO [video: buff.ly/2YaWK9b]
1231
This BBC video shows a visit to an extraordinary crystal cave in Mexico, la cueva de los cristales in Naica, Mexico. It contains large selenite crystals, up to 11 meters of length. It took an estimated 1 million years for the crystals to grow to this size: buff.ly/3GbSmMk
1232
Most female cheetahs spend their lives without raising a single cub to maturity. The species is dependent on "supermoms", particularly adept at raising cubs. One supermom, Eleanor, has mothered at least 10% of all adult cheetahs in the southern Serengeti ow.ly/lVQp30nxEvw
1233
A seemingly mundane photograph of a sink full of soapy water draining itself can accidentally turn into an eye watching from the depths of the vortex [read more: buff.ly/UA4QUj]
1234
In the 16th century, Copernicus proposed a fundamental change to the way we see our Solar System. This is a short depiction of the shift in thought between Ptolemy-Copernicus-Kepler, made in Blender
[video by Timothy Rowe: buff.ly/3QMBZKz]
1235
Monotremes are the only mammals left that lay eggs. This video of newly hatched baby platypuses and echidnas is one of few that documents this incredible process
[video: ow.ly/H4aY50AnbTT]
1236
This is what an empty 787 looks like [source, read more: bit.ly/2x0M5mE]
1237
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]
1238
Auricularia auricula-judae is a species of fungus distinguished by its noticeably ear-like shape
[read more: bit.ly/1TyCHJ4]
1239
Ever wonder where your house was located 300 million years ago? Thanks to software engineer Ian Webster, now you can. His interactive map tracks how the globe has changed over the course of the last 750 million years and... lets you pinpoint your address buff.ly/2LbvRy1
1240
Cellulo explores how small, inexpensive robots can leverage autonomy to help kids learn with their hands [read more: buff.ly/2FVk7JC]
1241
There's a point in South America where three countries borders meet in the so called Triple Frontier [read more: buff.ly/2qitcqG]
1242
An interesting fact about Fibonacci numbers is that you can use them to convert miles to km & viceversa. If you need to convert from km to miles, you need to find the preceding Fibonacci number. Bonus: there are 1.609 km in a mile, almost the Golden ratio ow.ly/VG1v30nghZt
1243
Gerd Schuster co-author of "Thinkers of the Jungle: The Orangutan Report", took this photograph of a male orangutan in Borneo on the island of Kaja, clinging to overhanging branches, trying to spear a passing fish [source: buff.ly/2YxE5Dr]
1244
To reveal the folding mechanism of a ladybug's wings, researchers constructed a transparent artificial elytron from ultraviolet light-cured resin: this method revealed the detailed wing-folding mechanism occurring under the elytra [full paper and video: buff.ly/2OGQWkt]
1245
Cyclist Michael Guerra dopts a definitely unconventional position on his bike and the result is an efficient aerodynamics which makes him pass the other cyclists.
This is the physics behind it: buff.ly/338WcmN
[video: buff.ly/32cLGM4]
1246
The coloration of the Monet’s Pond in Seki city, Japan, is so profound you may think there's some artificial lighting or dye behind it. But amazingly, there are no visual effects whatsoever
[📹 Hidenobu Suzuki: buff.ly/3TdNI6G]
1247
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]
1248
This slow motion video depicts the motion of the brain during an impact event. Concussions are the most common form of traumatic brain injury & are a growing concern in many contact sports [Source, University of California: buff.ly/3mJouPh] [more: ow.ly/MnvP30nOnGV]
1249
«Necktie knots are inherently topological structures; what makes them tractable is the particular manner in which they are constructed»
[T. Fink, Y. Mao, «Tie knots, random walks and topology»: buff.ly/3L85fKn]
1250
«All of the rocky and metallic material we stand on, the iron in our blood, the calcium in our teeth, the carbon in our genes were produced billions of years ago in the interior of a red giant star. We are made of star-stuff»
—Carl Sagan
buff.ly/3F6t1DY
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links