551
Fruit farmers' most difficult task is organizing the havest. Tevel's drones select, pick and box only ripe fruits with the help of an AI working day and night
[full video: buff.ly/3APys9i]
552
As soon as hatched, a juvenile flamboyant cuttlefish is capable of producing the same camouflage patterns as adults
[read more: buff.ly/3wAaFYx]
[📹 buff.ly/3PT1p8v]
553
Artist Patrik Proško’s core principle lies in the manipulation of lived reality, most often through a specific method of optical illusion and a variety of artistic devices. This is his Jack Daniel’s anamorphosis
[author's site: prosko.cz]
554
There is a method of growing rhubarb known as "forcing" where the plant grows in complete darkness and is tended to in candlelight. It grows so quickly during this process that you can hear it grow [read more: buff.ly/2IJBfH1]
amp.twimg.com/v/0e203ec4-b29…
555
SOFIA telescope is based on a Boeing 747SP wide-body aircraft that has been modified to include a large door in the aft fuselage that can be opened in flight to allow a 2.5 m (8.2 ft) diameter reflecting telescope access to the sky [read more: bit.ly/2C5o10g]
556
«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]
557
Laser ablation or photoablation is the process of removing material from a surface by irradiating it with a laser beam: rust removal from iron objects is especially efficient: buff.ly/3H7BVkq. But safety eyewear should be always used [source: buff.ly/3BZRfMu]
558
Preikestolen («Pulpit Rock») in Norway rises 604 m above the Lysefjorden. It was formed during the ice age, ~10,000 years ago, when the glaciers reached the cliff
[clip by Espen Hatleskog: buff.ly/3qklafZ-]
559
There are many challenges associated with living on the International Space Station. Things that are easy to do on Earth where there is gravity can be difficult in space. @AstroKarenN shows how she washed and rinsed her hair in microgravity [full video: buff.ly/2N699E3]
560
When Elvis was recruited to boost teenager take-up of the polio vaccine and the annual incidence of polio in the US decreased by nearly 90%. The story of the first, largest and most successful case of teen health activism in the 20th century [video: buff.ly/2ObVCPc]
561
This photo captured by photographer Berenice Abbott possibly in 1940s-1950s shows an engineer wiring an IBM 405 Alphabetic Accounting Machine [read more in a very useful inquiry about the photo by Ken Shirriff: buff.ly/2ZTaZ3G]
562
The blue-footed booby (Sula nebouxii) is a marine bird native to subtropical and tropical regions of the eastern Pacific Ocean. It is easily recognizable by its distinctive bright blue feet [read more: buff.ly/2Gxvibz]
563
Everyone knows Leonardo's Mona Lisa very well, but most of the people may have missed that he wasn't the only one who painted her: one of his students painted this version, currently on display at the Prado museum in Madrid in far better conditions ow.ly/X0V430na6TQ
564
Caladenia melanema, commonly known as the ballerina orchid, is a rare orchid with a single erect, hairy leaf and one or two cream-coloured to pale yellow flowers with red markings and black tips on the sepals and petals [read more: buff.ly/2O5TNU3]
565
Female lovebirds build their own nest from many materials, their favorite is palm leaves veins, which they tuck into their rump feathers for transporting them more efficiently [read more: buff.ly/3C4Z57F-] [source: buff.ly/3qrFAUE-]
566
An opossum mother will sometimes carry her young upon her back, up tp 15, where they will cling tightly even when she is climbing or running
[read more: buff.ly/2Lfzy1s-]
[source, The Dodo: buff.ly/3wzuNZB-]
567
On June 7, 2011 the Sun unleashed an M-2 (medium-sized) solar flare with a spectacular coronal mass ejection (CME). The large cloud of particles mushroomed up and fell back down looking as if it covered an area almost half the solar surface [read more: buff.ly/3bTnu5i]
568
The story of Dr. Khurshid Guru, who created a nebulizer on an Air Canada flight, using a water bottle, a cup, oxygen, and an adult inhaler to help an asthmatic toddler breath [read more: ow.ly/UVYa30nc83t]
569
Oranges are made up of almost 90% water by weight. This should pretty clearly mean that they are not flammable. However, thanks to a special oil called D-Limonene in their peel, they can spray fire [read more: buff.ly/2JhlEvu]
570
This photo from 1979 shows a Lawrence Livermore National Laboratory employee opening the world's heaviest hinged door, which was 2.5 m (8 ft) thick, nearly 3.7 m (12 ft) wide, and weighed 44 tons (97,000 lbs) [source, read more: buff.ly/3pOTNcv, buff.ly/3Ref8I7]
571
A pair of peregrine falcons mates for life. The courtship flight includes a mix of aerial acrobatics in which the male passes prey it has caught to the female in mid-air
[read more: buff.ly/3Tn1jcg]
[📹 Tohid Azimi: buff.ly/3AvCQZK]
572
The mineral pyrite also known as fool's gold, is an iron sulfide with the chemical formula FeS₂. It can be found in nature with almost perfect cubic formations like these ones
[read more: buff.ly/2Llz1Lw]
[📹 buff.ly/3RekJ15]
573
Gripping workpieces just as a chameleon's tongue grips insects – that is the operating principle of the adaptive shape gripper DHEF. The adaptive shape gripper grips energy-efficiently and reliably when combined with a pneumatic drive [full video: buff.ly/3aX2dGA]
574
Uroplatus phantasticus, the satanic leaf-tailed gecko, is a species indigenous to Madagascar. Its specific name phantasticus is the Latin word for "imaginary", based upon the gecko's unique appearance
[📹 chromatic_chameleons: buff.ly/3Q4thqw]
575
Cystisoma is a crustacean that lives between 600-1000 m deep in the ocean. Its body is totally transparent: only its eyes are pigmented. This one has a brooding pouch full of orange eggs
[read more: buff.ly/3cs0caB]
[📹 Alejandro Damian-Serrano]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links