2076
Viscosity is the resistance to flow of a fluid. Motor oil viscosity grades are based on a scale using letters and numbers. This is practical way to compare engine oils
[read more: buff.ly/3uy3IWd]
[source: buff.ly/3Y1NRge]
2077
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]
2078
Geckos "drink" from their eyes. In fact most geckos cannot blink, but they often lick their eyes to keep them clean and moist. They have a fixed lens within each iris that enlarges in darkness to let in more light [read more: buff.ly/2G8X6BY]
2079
Despite it looks like a clumsy attempt to draw a snake, Eryx jayakari, known commonly as the Arabian sand boa, is a real species of snake endemic to the Arabian Peninsula and Iran where it spends the day buried in the sand [read more: buff.ly/3QN8B7l]
2080
In this awesome recreation of the iconic album cover for Pink Floyd’s "Dark Side of the Moon", Aldo Cavini Benedetti uses thread and a needle to replicate the prism and spectrum of light [source: buff.ly/2KqgAFG]
2081
While they seem to show affection to one another, these two monitor lizards are actually fighting. They do it by rearing up on their hind legs & trying to overpower their rival, generally as competition for food, territory or a mate buff.ly/3BXo3cz
2082
Photographer Dimitar Karanikolov piloted a drone over the waters near Oslob in the province of Cebu, Philippines, to get this stunning view of whale sharks seen from above
[source: buff.ly/3HbFoxD]
[author's Instagram: buff.ly/3qlbd0i]
2083
Mario soundtrack on something that Nikola Tesla would like very much
[source, magic_beat: buff.ly/3TKbPZX]
2084
How in 1966 the Soviet Union used a 30-kiloton nuclear weapon to extinguish an out of control natural gas well fire [video, full story: buff.ly/2vuMhao]
2085
These are Brown Marmorated Stink Bug nymphs seen hatching at extreme close up, captured by YT macro-photography channel Another Perspective
[full video: buff.ly/3ueKIJL]
2086
A blowhole is essential the nostril of a whale. Similar to a human's the whale’s blowhole is attached to their trachea and is connected to the lungs. In some whales' species, their appearance is definitely similar to a human nose, like this humpback whale ow.ly/e3iS30n5bbH
2087
Melibe viridis is a carnivorous sea slug with a gelatinous vacuum cleaner for a head: the nudibranch has an oral veil expanding into a "fish net" used to scan and eat its prey
[read more: bit.ly/2wkkbBv]
[📹sina.joelle: buff.ly/3vkJjVh]
2088
The king vulture (Sarcoramphus papa) is a large bird found in Central and South America. William Bartram reported a "panted vulture" in his notes of his travels in Florida during the 1770s. It was very likely a king vulture.
[📷 Miroslav Liska: buff.ly/3HqSAT0]
2089
Silkmoths of the genus Rhodinia have larvae of the later instar that squeak loudly if touched, a very likely mechanism of defense used to frighten predators
[read more: buff.ly/3HKq5N0]
[📹 Bart Coppens: buff.ly/3G4QULl]
2090
During the winter months, as dusk arrives, starlings set off for their communal roost in one of the most staggering natural spectacles of all. The murmurations take on incredible shapes [video by Richard Sykes + read more: buff.ly/3jS2cJz-]
2091
«One accurate measurement is worth a thousand expert opinions»
— Grace Hopper
buff.ly/3jcDI0g
2092
This is the Great Daylight Fireball that grazed the Earth's atmosphere exactly 50 years ago #Today. The atmospheric pass modified its orbit, but it is probably still in an Earth-crossing trajectory and passed close again in 1997 bit.ly/2aYwgzS
2093
Magnus effect, can send even a ping-pong ball curving up, down, left, or right – always at a right angle to the direction of motion – depending on which way the ball is spun. This is a remarkable example
[source, IG's Pongfinity: buff.ly/2LnkrmF]
2094
Winged manakin males have evolved adaptations to suit the females' attraction towards sound. They shake their wings 100 times a second producing a high-pitched note: an effect known as sonation [full video by birding ecu: buff.ly/3o7Mxs6-]
2095
The size of the rings of Saturn compared to our planet [read more: buff.ly/3qjjkfB]
2096
The BMW Iso Isetta was the top-selling single-cylinder car in the world, with 161,728 units sold
[read more: buff.ly/2J6jGAW]
[📹, Petrolicious: buff.ly/2JcGVtj]
2097
An interesting take on tensegrity where one heavy wire frame seems mysteriously suspended above another. This configuration is related to the concept of tensegrity invented by Kenneth Snelson and made famous by the architect Buckminster Fuller in 1949 buff.ly/349NSm6
2098
What a wagging dog tail really means: scientific data say that specific tail wags provide information about the emotional state of dogs
[read more: buff.ly/2lv92q5]
[📹: buff.ly/348gTnh]
2099
Announced 22 years ago #Today, the Nokia 3310 is one of the most successful phones, with 126 million units sold worldwide. It's still widely acclaimed today and has gained a cult status due to its remarkable durability [read more: buff.ly/3cD1pMe]
2100
Plants do actually move: we just don't live in the same time reference frame. This 3-day time lapse shows the so called plant's nastic movements, mostly due to changes in turgor or changes in growth buff.ly/30a2rqp [source, full time lapse: buff.ly/3eTvEdw]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links