Massimo(@Rainmaker1973)さんの人気ツイート(古い順)

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This transmission between three shafts with ball liaison, finger sliding pivot, universal joint type is just a design but it's technically working [source, read more: buff.ly/2AokRck]
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The Pin-tailed whydah has an elaborate courtship flight display, which includes hovering over the female to display his tail [read more: buff.ly/3K2zGAN] [📹 Tohid Azimi: buff.ly/3R7iLQf]
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To understand recursion, one must first understand recursion. —Stephen Hawking [📹 Specoolar, HD: buff.ly/3PoWgVu]
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Stink bugs deposit their eggs on the underside of leaves in clusters with tight rows of individual barrel-shaped egg. Each egg is just 1 mm in diameter and some species' have a somewhat friendly appearance [video by Tim Doyle: buff.ly/3BoJe3r]
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In 1963, one young monkey retrieved soybeans from the hotspring water and decided the heat felt great. Today, Jigokudani Monkey Park is famous for the monkey residents who continue to enjoy its steamy waters [full video: buff.ly/2LkT6Ek]
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Hippos can sleep underwater using a reflex that allows them to bob up, take a breath, and sink back down without waking up [read more: buff.ly/2G658QW] [📹 Vladyslav Vyazovskiy: buff.ly/2G64JxU]
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Sachatamia ilex is a species of frog in the family Centrolenidae and it is found in Central America. Its silver eyes with black reticulations, positioned on top of the large semicircular head may give you the impression this frog is going to hypnotize you buff.ly/2HNflhU
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«Behind the Curve» is a 2018 documentary about the global community of people who believe that the Earth is flat. This is when flat-earther Jeran Campanella devises a simple experiment and accidentally proves the Earth is round: buff.ly/3C76K94
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This short clip shows the process of digging, extracting cleaning and enjoying crystals [📹 rocksforthespiritt: buff.ly/3PwWJFh]
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One of the expressive styles of artist David Popa is creating portraits on small ice floats using only charcoal and water [read more: davidpopaart.com]
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Guangzhou Circle (广州圆大厦) is a landmark building located in Guangzhou, Guangdong province, China. It takes a reference from an idea of the Italian Renaissance; "quadratura del cerchio" (squaring the circle) [read more: ow.ly/LDMP30mEn9n]
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Fynn Jackson folds intricate origami faces with paper and most of his designs are improvised, being the patterns the result of trials and errors [source and more artworks: buff.ly/3CdwGQh]
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The gyroscope seems to defy gravity because the torque created by the spinning wheel counteracts the torque due to gravity [source, read more: buff.ly/2ZBSW5L]
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'Relativity' is a lithograph print by artist M. C. Escher, first printed in December 1953. It depicts a world in which the normal laws of gravity do not apply. This is an animated version of the famous artwork [source: buff.ly/3xkiJO2]
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Miners carbide lamps were powered by the reaction of calcium carbide (CaC₂) with water (H₂O). This reaction produces acetylene gas (C₂H₂) which burns a clean, white flame [read more: buff.ly/3prOhwd] [📹 Jesse Marosek: buff.ly/3dCxunM]
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Lacrymaria Olor is an unicellular microorganism able to stretch its "neck" to about 7-10x its body length. With no eyes, it also looks like it knows where prey are located [read more: buff.ly/2HplFBk] [source, Jam's Germs: buff.ly/3GCjKDs]
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Squeezable lightbulbs like Incredibulb use A19 LED lights and flexible silicone, which keeps them shatterproof throughout use. The rubberized material also ensures that the bulb is never hot to touch [read more: theincredibulb.com]
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Timelapse footage recorded on New Zealand’s South Island shows a huge wall of cloud rolling toward an airport in Ashburton on November 27, 2021 [📹 HD, Austin Jones: buff.ly/3pq0mlN]
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Giant sequoia specimens are the most massive individual trees in the world. Record trees have been measured at 94.8 m tall & 9 m in diameter. Outdoor adventure photographer Quin Schrock captured the scale vs a human [source: buff.ly/3GNmT3s]
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The Vortex Turbine by Turbulent Hydro is an eco-friendly way to harness energy from rivers and canals with a low height difference. A single turbine can generate from 15 to 70 kW of constant energy around the clock [read more: turbulent.be]
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Thanks to its lightweight construction, the buoyancy of helium and the wing drive, FESTO Air_Ray moves through the air like its natural role model through the water [read more: buff.ly/3mBokJ7] [📽️ source: buff.ly/3zsZlj0]
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Computer engineering for babies [read more: computerengineeringforbabies.com]
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Ravens can talk (buff.ly/3SYCt2b) but sometimes they even know how to sing, like this one trained by Giuseppe Cassini [source: buff.ly/3bYHCH2, buff.ly/3SYmgKe]
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On March 1st, 1975, the Australian TV said goodbye to black & white, and hello to color. At exactly midnight, the episode of The Aunty Jack Show literally transformed from black and white to colour [full video: vimeo.com/6275660]
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Hitting and launching molten iron into the air with a shovel is a very dangerous activity and must not be tried anywhere, but (with the proper protection equipment) it can produce surprising beauty [source, SUSHI RAMEN【Riku】: buff.ly/3KcE5zz]