826
The Megalodon is an extinct species of shark that lived approximately 23 to 2.6 million years ago. Reaching 20 meters in length, it looked like a stockier version of the modern day great white shark: this is a comparison between their teeth [read more: buff.ly/2qoyqj1]
827
A gyroscope is probably one of the most fascinating physics toys and one of the most useful applications of conservation of angular momentum in several branches of science and technology [How it works, video by @tweetsauce: buff.ly/2JLMtZ4]
828
Spy hippo is a robotic spy animal capable of capturing some of the closest views that have ever been seen. And when real hippos dive underwater, spy hippo discovers a fish spa and an underwater clinic with skin treatment & dental hygiene too [full video: buff.ly/2mbhOxm]
829
This video by dr Lila Landowski shows two neurons sensing one another and connecting in a petri dish. They use webbed hand-like structures and the finger like projections help decide which direction to grow in [video + read more: buff.ly/3nzeTLB-]
830
This famous video by @Mehdi_Moussaid shows a trail of termites (up) and a trail of ants (down) in what looks a stand-off between the two species, without fighting. The ants protect their valuable food bound to the nest [read more: buff.ly/3nIas1r-]
831
An awesome variation on the fractal tree [source, with a multiple, pervasive selection of programming language codes by Rosetta Code and Michael Mol: buff.ly/2Hz5pJP]
832
How photographer Jani Ylinampa brilliantly captured the beauty of a small island through all four seasons [source, read more: buff.ly/2JoZMxv] [author's Instagram: buff.ly/3cu0t9m]
833
A cyclic number is an integer in which cyclic permutations of the digits are successive multiples of the number. The most widely known is the six-digit number 142857, whose first six integer multiples are cyclic permutations of its digits [read more: buff.ly/2Hbkq6W]
834
The tidal cycle
This 2011 time lapse movie speeds up by 720 times the fall and rise of the tide in Hall's Harbour, Nova Scotia,
[📹 Leo de Groot: buff.ly/3ipfMld]
twitter.com/CURIOSITSClENC…
835
Flying amongst the Greenlandic icebergs, photographer Luke Stackpool was fortunate enough to capture these beautiful giants as they explored the deep blue Icefjord
[source, more videos: buff.ly/3TV444R]
[author's site: withluke.com]
836
The Mars Express orbiter has kept an eye on an elongated cloud above Arsia Mons volcano for the last few years. The cloud is reoccurring, grows incredibly fast and is "made up of water ice," according to the European Space Agency [read more: buff.ly/2DmwUZa]
837
The Buoyant Airborne Turbine is a concept of flying inflatable wind turbine which could generate consistent, low cost energy for the remote power and microgrid market, including remote and island communities [source, full video: buff.ly/3CvmcZd]
838
Chika Ofili, the 12 year old boy who devised a new formula to test a number for divisibility by 7
[read more: buff.ly/3d88y7s]
839
Perfect crystals with no defects can be fully symmetric and this clip by Alan Hart showing a rose-like calcite on fluorite from the Wildfang collection seems to confirm that [source + read more: buff.ly/3x7FxhN]
840
"Purple Phoenix" is a sculpture by Jack Storms designed using a cold-working lathe. There is no heat involved in the process: the materials used on each one of Jack Storms’ glass sculptures are 32% optical lead crystal, optical crystal and dichroic glass jackstorms.com
841
#FridayFunDay
[source, Mark Parisi: buff.ly/3QxMAIG]
842
This is how the bones grow and form in your hand [source, read more: buff.ly/2HmOfBq]
843
Fourier transforms are a tool used in a whole bunch of different things. Jez Swanson explains what a Fourier transform does, its relationship with epicycles and some different ways it can be useful [read more: ow.ly/ImiS30nibZO]
844
Water waves motion is a combination of both longitudinal & transverse motions. As a wave moves through water, the particles travel in clockwise circles. The radius of the circles decreases as the depth into the water increases [source, gif by Dan Russell: buff.ly/3buXf5N]
845
No, the tiger printer is not getting low on ink. Naturally color mutated tigers include golden, white and albino tigers (here shown with a normal tiger, left) [golden tiger: buff.ly/2GThUPn] [white tiger: buff.ly/2GUQtEV]
846
On January, 15th, 2019, Ocean Ramsey and her team encountered what is possibly the largest great white shark ever recorded, approximately 6 meters long (~ 20 feet)
[full video + read more: buff.ly/2DDv033]
847
During WWII on March 17th, 1944, this picture was taken showing B-25s flying past Mount Vesuvius as the volcano erupted destroying two villages, killing 26 people and displacing over 12,000. That was the last major eruption of the volcano to date [source: ow.ly/lNuf30ngS5a]
848
Tortoises and turtles can feel their shells. A mechanoreceptive innervation in the superficial layers of the shell is sensitive to transient stimuli [buff.ly/3ibuV9A, buff.ly/3m3kze4] [source, Badger Run Wild Rehab: buff.ly/3qSDOfn]
849
This bonsai tree, currently housed in the U.S. National Arboretum in Washington, D.C, was planted in 1625, it's 397 years old and survived the bombing of Hiroshima, still growing today [read more: buff.ly/2H0sy6W]
850
Shakuntala Devi, the human computer who gave the 23rd root of a 201 digit number in 50 seconds. The answer was verified at the US Bureau of Standards by the UNIVAC 1101 computer, for which a special program had to be written to perform such a calculation buff.ly/3eoS0Xg
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links