276
This video is a demonstration that the horizontal component of velocity in a projectile motion remains constant
[full video: buff.ly/2R7VbED]
[explanation: buff.ly/3jrruRJ]
277
A Fleischmann's glass frog (Hyalinobatrachium fleischmanni) can often be spotted lying very flat against a leaf looking more like a leaf with a pair of eyes
[read more: buff.ly/3uaqQHR]
[📷 KERO__v: buff.ly/3vcIcqq]
278
The nicotine and other chemicals in discarded filters act as a natural pesticide that repels parasitic mites. This is why birds are keeping their nests warm and pest-free by lining them with cigarette butts
[read more: buff.ly/2KifxLw]
279
The pied kingfisher is the largest bird in the world that is able to hover without using air currents. This means it doesn’t need a perch to hunt for fish, but can do so from the middle of a lake
[full video: buff.ly/38GmA9h]
280
Spinning a gyroscope & putting it in its own box is an always surprising trick, but also useful to visualize the conservation of angular momentum. The box rotates in the opposite direction vs the disk's one
[📹 IncredibleScience: buff.ly/3PNXz28]
281
Nothing remarkable, just a small rotating card dealing robot
#SaturdayFun
[source: buff.ly/3hN98Kg]
282
On Mocha Island, Chile, natural gas from underwater vents and seeps can originate phenomena like this one
[read more: buff.ly/3Lvl4uj]
[source: buff.ly/3LA1ay8]
283
The Pickaso Guitar Bow is a revolutionary way to imitate violin/cello sounds on an acoustic guitar
This is Marcus Eaton giving a demostration, playing the Games of Thrones theme with Matera in the background
[Marcus' TikTok: buff.ly/3hN76K8]
284
The motion of the hip joint.
The hip ligaments are the strongest in the human body. The Y-shaped and twisted iliofemoral ligament has a tensile strength of 350 kg
[read more: buff.ly/3TcHxQv]
[📹 Anatomy Standard: buff.ly/3TaJJrE]
285
Micro Hovercraft Laboratory owner Hideyasu Ito demonstrates his latest micro hovercraft which has four air skirts at an annual DIY exhibition Maker Faire Tokyo 2022
[read more, video (JP): buff.ly/3PSgIA7]
286
This video shows how you can easily draw an illusory 3D stair using anamorphosis, or the view of a recognizable image only from a precise vantage point
[📹 refachero19: buff.ly/3WkRxZa]
287
These incredible salt formations can be seen in the south, southwest, and central areas of Iran. The best examples are found in the Zagros mountains that run parallel to Iran’s coast on the Persian Gulf
[read more: buff.ly/3ksLL4c]
288
The story of 17-year-old Solomon Atimbiri who taught himself robotics and, among the other things, built this toy excavator using scrap materials
[read more: buff.ly/3FKg0jC]
289
Why does fire burn? What's the chemistry and physics of a flame? Learn about the beautiful science happening inside a flame. Among the other things, this video shows how a flame is actually hollow
[full video, Be Smart: buff.ly/2q7am44]
290
This brilliant collection of shapes by Tib Roibu, shows various nature elements, compounds, animals' creations and processes that abide by geometric laws and construction patterns
[source, Geometry Matters: ow.ly/5jl830q1k6P]
291
The strange 1989 incident of the Mig-23 crash. Experiencing a technical problem, the soviet pilot ejected over Poland. The jet continued to fly for 900 km before running out of fuel and crashing into a house in Belgium, killing its occupant
[read more: buff.ly/3gIax0M]
292
The rock ptarmigan is seasonally camouflaged and emits a repertoire of guttural snores and rattles, most often directed to other males during breeding season
[read more: buff.ly/3VrHUGS]
[📹 Tolkuton: buff.ly/3I0cHaT]
293
54 years ago #Today, one of the most famous images ever taken was snapped from the orbit of the Moon. Now known as "Earthrise", with modern digital technology, the iconic image -- originally in black and white -- has been remastered ow.ly/Hir130n5JpX
294
This is how prefabricated structural units allow a 10-storey building to be completed in 28 hours and 45 minutes
[📹 buff.ly/3WomsDR]
[read more: buff.ly/3vy5CHb]
295
In this video, @ProfBrianCox shows how and explains why a bowling ball and a bunch of feathers fall with the same speed in a vacuum vs they behaviour in a normal atmosphere
[full video this video: ow.ly/jRZG30oduEo]
296
Scientists know that rats like to have their bellies tickled, so they used that as basis for testing happiness in rats. They found out that the ears of rats undergoing tickling became droopier & pinkier, subtle signs of being relaxed and happy [read more: buff.ly/2ZbX7Sh]
297
How Eratosthenes measured the size of Earth: the Cosmos episode where Carl Sagan explains how the ancient Greeks, using reason & math, figured out the Earth isn’t flat over 2,000 years ago
[📹 buff.ly/3h8nmRo]
[transcript: bit.ly/2C15z8A]
298
50% of Panda births result in twins, but Panda moms almost always abandon one. Therefore, zookeepers have to switch the cubs every few hours to trick the mom in to caring for both
Yet, with this trick, it's true love
[📹 iPanda: buff.ly/3VlMdDu]
299
The stonefish is the world's most venomous fish. Through its dorsal fin spines it can inject a venom that can kill an adult human in less than 1 hour. This is an estuarine stonefish (Synanceia horrida)
[read more: buff.ly/2O5stCi]
[📹 Frank Volpe]
300
Rubber tapping is the process by which latex is collected from a rubber tree. It is not damaging to the forest, as it doesn't require the tree to be cut down
[read more: buff.ly/3I7FCcO]
[📹 kimman995: buff.ly/3WqOQFx]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links