1926
One evening, while walking along the riverbed of the Myakka River State Park in Sarasota, Florida, photographer Larry Lynch came across a group of alligators. This is the result of setting his flash on the lowest setting to give just a tiny bit of light lynchphotos.com
1927
J.J. Thomson won the Nobel Prize in physics in 1906 showing that the electron is a particle: ironically, his son, G.P. Thomson, won the Nobel Prize in physics in 1937 showing that it is not (or rather that the electron can also behave as a wave) [more: bit.ly/2C0xp92]
1928
Because they eat in sea water, marine iguanas “sneeze out” excess salt their body collects while underwater through a nasal gland
[read more: buff.ly/3DkGe97]
[📹 Shelton Dupreez: buff.ly/3G91XTj]
1929
Frozen, sculpted sand along the Lake Michigan shoreline in St. Joseph. The shapes emerge when strong winds erode the frozen sand.
[📷Terri Abbott, January 8, 2022: buff.ly/3JWLdl2]
1930
Bottled water cost is astounding when you think of how much you’re paying for production and distribution compared to the water itself. It’s even more shocking when you consider the detrimental effects it has on the environment
[source, read more: buff.ly/2LvDWvx]
1931
«The kid's guide to the Internet» is a 1997 informational videotape reviewing the online services available at the time, quite interesting to make a comparison 25 years later
[full video: buff.ly/3phhgn2]
1932
One radian is the angle subtended at the center of a circle by an arc that is equal in length to the radius of the circle. Another way to see that is that a radian is an equilateral triangle, with one side curvilinear
[📹 @MathHappensOrg, read more: buff.ly/3iaG4au]
1933
We're accustomed to seeing smoke as something that floats in the air and it generally soars, but when the particles of burned substances have density which is higher than air's, the smoke can behave differently and drip down like water [source: buff.ly/30YIfY0]
1934
The Incline Gravity Clock has no batteries or mainspring but it's powered by gravity. As the clock rolls down the incline, gravitational potential energy is translated into the kinetic energy of the moving clock gear train and oscillating balance wheel buff.ly/3wpZTTp
1935
The story of Beach Donkey, the 24-year-old African penguin who was diagnosed with pododermatitis, a foot condition that made it painful to walk. Now she walks with her custom-made shoes that treat her problem.
[full story: buff.ly/3Fk1PmI]
1936
Turritopsis dohrnii is a species of biologically immortal jellyfish. If it is exposed to environmental stress, physical assault, or is sick or old, it can revert to the polyp stage. Theoretically this process can go on indefinitely
buff.ly/2EiGNXV
1937
This diligent robot balancing a triple pendulum poses a huge and successful challenge to chaos
[by Tobias Glück, Andreas Eder, Andreas Kugi of Automation and Control Institute, Vienna University of Technology]
[full video: buff.ly/3DvRfWd-]
1938
This is a 480 million year old Boedaspis trilobite fossil. Over a month of preparation work went into extracting it from the surrounding limestone by a master fossil preparitor, using air abrasives under microscope [source, read more: bit.ly/2wVtg4g]
1939
Sleeping in space is an important part of a mission, with impacts on the health, capabilities & morale of astronauts and it's not easy. Even the posture, due to micro gravity, ends up by looking totally unnatural as shown in this Shuttle footage [source: buff.ly/2p9DwmT]
1940
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]
1941
If you put a series of out of phase metronomes on a movable surface, they will sinchronize themselves according to what is called a Kuramoto model of synchronization
[explanation: bit.ly/2qwVE9N]
[IkeguchiLab: buff.ly/2MjPcKG]
[more: buff.ly/2sYxvr3]
1942
Sweden has the largest scale model of the Solar System in the world, 950 km across
[read more: bit.ly/2bwAAVp]
1943
The Balance Pteranodon has weights in the forward wing tips creating a center of mass below its beak and making a system that can rotate and oscillate about a stable equilibrium condition [source, read more: buff.ly/3riBxaR]
1944
The Gathering for Gardner Dragon is probably one of the most captivating examples of the hollow-face optical illusion, but this big version in a street of Beijing is even more mesmerizing
[read more: buff.ly/2GE7QKN
[📹: buff.ly/2sm8QjA]
1945
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
[source, full video, BBC: buff.ly/2N3GBvu]
1946
Inspired by Edwin Abbott’s satirical novel ‘Flatland’, ‘Squaring the Circle’ is the first in Troika’s series of perspective sculpture that is perceived in correlation to the position of the observer [read more, 2013: buff.ly/2LG9D5U and more: buff.ly/3otGsFq]
1947
Leptocephalus is the flat and transparent larva of the eel, marine eels, and other members of the superorder Elopomorpha
[read more: buff.ly/3F7du7N]
[📹 buff.ly/3Hso5ff]
1948
Spider webs have existed for at least 100 million years, as witnessed in a rare find of Early Cretaceous amber from Sussex. This spiny orb weaver spider filmed by Rachel Barry is patiently demonstrating how they build them [source: buff.ly/30md23I]
1949
Remarkable vapor cone on a Navy Blue Angels F-18
[read more: buff.ly/2lkUJEo]
[📹 Brandon Bruce: buff.ly/3exEmDw]
1950
Around 85% of humans only breathe out of one nostril at a time. Even more interesting is that the pattern of switching from breathing out of one nostril to the other happens in a cyclical fashion, with about four hours between each switch
[read more: ow.ly/F8wf30nMS2T]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links