2351
Wood opal is a form of petrified wood which has developed an opalescent sheen or, more rarely, where the wood has been completely replaced by opal. Considerable deposits are in Queensland, Australia [read more: buff.ly/2INve8m]
2352
It could seem an obvious point, but this is what a syringe needle looks like after multiple reuse, which can be crucial to avoid complications in certain pathologies treatment [read more: buff.ly/2EzzdmF]
2353
This is the death of a single cell. This ciliate is in the genus Blepharisma, a microbial eukaryote. As the cell membrane lysis, the contents spills out. Magnified 400x and sped 6x real time [source by Dr. Hunter N. Hines: buff.ly/3HyXniy-]
2354
Asperitas is a cloud formation first proposed as a type of cloud in 2009 by Gavin Pretor-Pinney of the Cloud Appreciation Society. This timelapse was captured by Alex Schueth over Lincoln, Nebraska [full video: buff.ly/3cxfNlr] [read more: buff.ly/2IuGuaj]
2355
The Magnus effect is a phenomenon associated with a spinning object moving through air or another fluid. The most common example is a spinning ball curving while falling like in this clip by How Ridiculous [read more: buff.ly/2PJeIiv] [full video: buff.ly/3kS5dZO]
2356
Sculptor Bruno Catalano works in bronze sculpture with a reoccurring motif: his figures are always lacking mid sections, and seem to be eerily suspended in mid air [more artworks: brunocatalano.com]
2357
Photographer Paul Hammet set up his tripod as thunder boomed around him over the Matterhorn
[source: buff.ly/3cnRZ3r]
[Paul Hammet's site: alpineclarity.com]
2358
The Math Dance
[source: buff.ly/3ATcW24]
twitter.com/UniverCurious/…
2359
log(😅) =💧log(😄)
#MathMonday
#MotivationMonday
2360
The beauty of the moss cells under the microscope
[📹 Adolfo Sánchez-Blanco: buff.ly/3qcEqed]
2361
This ultra-small generator is highly portable and works even with shallow, slow moving water. Already tested with powering street lights, it promises to allow people in the world’s remote regions to generate their own electricity [source, full video: buff.ly/2U6yeEc]
2362
It looks like a wasp, but it's actually a mantis. It's the wasp mantidfly and it's an example of convergent evolution
[read more: buff.ly/3cOfl6h]
[📹: buff.ly/3AQ6vwX]
twitter.com/glurpo/status/…
2363
The scale of a marble quarry can be so huge that an excavator might look like a toy [more about Carrara's marble quarries: buff.ly/2YkDN59] [source of the gif: buff.ly/2Z9t2lB]
2364
What does the Sun do at the poles? The sun circles around the horizon in 24h: here is a time-lapse of nearly 5 days from March 08 to 13, 2017 filmed at the South Pole
[source of the clip, Robert Schwarz: ow.ly/UUoB30ngRw9]
2365
This video by Kurdistan Planetarium and this gif chart extracted from it, brilliantly show how Earths tilt on its axis is the cause of the seasons [full video: buff.ly/3fHXA4e]
2366
This behavior is known as rolling swarm and these are sawfly larvae. The surprising thing is that this entire rolling swarm moves faster than any single larva can [read more: buff.ly/3s8bti7-] [source, Mirra Whale: buff.ly/3DsGDas-]
2367
Wolly mammoths’ tusks, which could spiral to more than 4 meters, are reemerging from the permafrost. These giants roamed northern Siberia during the late Pleistocene epoch and died off about 10,000 years ago, except for isolated populations [read more: buff.ly/37M4lzk]
2368
In Brazil, there are hundreds of paleontological sites characterized as paleoburrows, underground shelters excavated by extinct paleo-vertebrate megafauna, mainly giant sloths. On the left, the tunnels; on the right the claw marks [read more: buff.ly/3kKXNIO]
2369
Remarkably well preserved but embedded in stalactites and covered in a thick layer of calcite, this skull has given the oldest known samples of Neanderthal DNA, dating back between 128,000 and 187,000 years ago [read more: buff.ly/2EBzrtj] #AltamuraMan
2370
This documentary from PBS shows an octopus changing colors while sleeping. Marine biologist David Scheel thinks that the sea creature is dreaming about hunting, which sparks the color shift to a camouflaged shade [video: buff.ly/2lqQuuL]
2371
There’s a tiny, innocent-looking rodent called the grasshopper mouse who kills highly venomous arthropods like scorpions and forcipules and it howls at the moon to claim its territory
[videos + read more: buff.ly/3RnIkNh]
2372
A recent research found that a cup of tea made with plastic teabags may come with a dose of micro- and nano-sized plastics (the latter being less than 100 nanometers in size) shed from the bags. Health effects are currently unknown [read more: buff.ly/2lLK75g]
2373
That time when a giant Moon balloon was blown away in China and found strolling along the streets [story: buff.ly/2qj2jlA]
2374
The longest, published word in English is the term for the formula C₁₂₈₉H₂₀₅₁N₃₄₃O₃₇₅S₈, a protein that has 267 amino acids [read more: buff.ly/2H79ib0]
2375
A closed wing is a wing that effectively has two main planes which merge at their ends so that there are no conventional wing tips. This video by Anderson Rayner shows a test of annular wing [read more: buff.ly/3sUGAyj] [full video: buff.ly/3qo79dR]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links