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«Look again at that dot»
Through the brilliance of Saturn’s rings, @CassiniSaturn caught a glimpse of a far-away planet and its moon. At a distance of just under 900 million miles, Earth shines bright among the many stars in the sky
[source: buff.ly/3GfJzLl]
302
The red-capped manakin's "moonwalk" to impress the ladies
[source and full video: buff.ly/2uA52f9]
303
In this ABC interview from 1974, science fiction writer Arthur C. Clarke makes the bold claim that one day computers will allow people to work from home and access their banking records
[full video: buff.ly/2RiX0Oy]
304
These flames are touchable. They are not even flames, actually as they are made by water vapor lit by LED lights
[source: ow.ly/DZf230n7xFw]
305
The Lambert 1 typewriter (1896) is unique in shape and technology. Its keyboard consists of one single piece. On pushing a key, the entire keyboard and the attached type stamp (pic 6) swivelled into position and printed the correct letter onto the paper ow.ly/2zQU30q1y1r
306
Elephant seals rarely cross paths with humans but when they do, they can really throw their weight around
[source, full video, BBC Earth: buff.ly/2IEAmeD]
307
This photo shows six unidentified scientists using ladders and a large chalk board to work out equations for satellite orbits at Systems Labs, California. The set of pictures was captured by J. R. Eyerman for Life Magazine in 1957
[more photos: buff.ly/2RSD5sY]
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At SpaceX, you can find a coffee table made with a set of grid fins of a Falcon 9 rocket
[source: buff.ly/2Ej3U1q]
[read more: buff.ly/2YNOID4]
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This trampoline moving at constant velocity (and therefore not accelerated) shows you how the horizontal component of velocity in an acrobat motion remains constant
[📹, Dunking Devils Squad: buff.ly/2Gr3ri4]
[explanation: ow.ly/2WX930oetjg]
310
Theoretically it is possible to encode all the information contained in every book ever written on a single notch on a perfectly straight metal rod (using only 2 parameters)
[📹 mathletters: buff.ly/3YF04YJ]
311
The first ever synthetically produced color pigment, Egyptian blue, was created around 2,200 BCE. In 2006 scientists discovered it glows under fluorescent lights, allowing us to detect it on artifacts where it is no longer visible to the naked eye ow.ly/Y7ub30ocpOu
312
Salar de Uyuni is the world's largest salt flat. Following rain, a thin layer of dead calm water transforms the flat into the world's largest mirror, 129 km across
[read more: buff.ly/37Ugxma]
[📹 David Houncheringer: buff.ly/370vKSj]
313
The rainbow starfrontlet (Coeligena iris) is a species of hummingbird in the "brilliants" tribe Heliantheini. Males have a glittering yellow-green forecrown that transitions through golden yellow to blue on the crown
[📷 Jorge Luis Cruz Alcivar: sanjorgeecolodges.com]
314
Why is molten lava often covered with zig-zag patterns? Geophysicists have shown that the angle of the zig-zags is determined by the rate at which fresh lava spreads out, and how quickly it subsequently cools and turns solid
[source: ow.ly/53KV50xzxQ6]
315
Few lines are enough to see Jack Torrance. It's called stationary slit vision.
[read more, by @AkiyoshiKitaoka: buff.ly/343VxYb]
316
Japanese monkeys learned to wash sweet potatoes in fresh water. After some generations they started to carry the potatoes to the sea. Their motivation might have been to get the salty taste: a first strong evidence of cultural behavior in nonhuman animals buff.ly/3yqORxI
317
The Kauaʻi ʻōʻō was a bird common in the subtropical forests of Hawaii until the early twentieth century, when its decline began. This is its last song that was last heard in 1987: it is now probably extinct
[full video by Robert Davis: buff.ly/2KtVcPG]
318
The Zarplotter is a four motor drawing robot originally created By Randy Szarzynski and others in California. ZipScriptPro is a smart variant that can write a letter exactly as if it was handwritten
[full video: vimeo.com/223048367]
319
The science of snowflakes explained in “Beyond the Microscope,” a GE science film from 1922
[full video: buff.ly/2E7q9aD]
320
74 years ago #Today, the transistor was first demonstrated by Walter H. Brattain and John Bardeen to their higher-ups at Bell Laboratories. It has since become the most widely manufactured device in history bit.ly/2kNRLs3 #HappyBirthdayTransistor
321
In this clip, you can notice the pollen baskets or corbiculae which are part of the tibia on the hind legs of certain species of bees. You can also see two bee guards carefully inspecting
[read more: buff.ly/2zbrPjF]
[📹 buff.ly/3hJm4Rx]
twitter.com/Enezator/statu…
322
This clip is a magnificent visualization of the toroidal structure and flow of a smoke ring
[detailed scheme: buff.ly/3EBZhzQ]
[physics: buff.ly/3CcOcmc]
[📹 Garrett Mobus: buff.ly/3PMwbS4 ]
323
Apples are generally red, green, yellow, but if the right geographical conditions are met, they can apparently grow dark purple, almost black, as well. These rare apples are called Black Diamond and they are currently only grown in the mountains of Tibet ow.ly/790C30odBsT
324
When owls hunt their prey in the snow, typically leave evidences like this, marking the spot where a small rat or a squirrel has been caught
[source: ow.ly/Hrd830q1vlZ]
325
A highly magnified video of single stoma opening and closing on a leaf of a Tradescantia spathacea plant, commonly known as a boat lily.
This is how a plant breathes
[source, Douglas Clark: buff.ly/3VhQAQ6]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links