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Shimmering is a defence behaviour in giant honeybees, whereby bees on the nest surface flip their abdomen upwards in a Mexican wave-like process. This BBC video provides some of the best shots of the phenomenon: [read more: ]

This is the very moment an oil tank catches fire after a lightning strike. It happened at Calcasieu Refining Co. in Lake Charles, Louisiana, on June 3, 2023 [read more: ]

The Golden Mechanical Horse is a is a kinetic sculpture by artist Adrian Landon, commissioned by and displayed at the Daxton Hotel, in Birmingham, Michigan [read more: ]

If a plunging wave is not parallel to the beach, the breaking section (or curl) will move laterally across the face of the wave. This is the 'tube' that is so highly sought after by surfers (also called a 'barrel', a 'pit') [📹 ]

Artist Do Ho Suh sculpted this statue named Karma outside the Albright-Knox Art Gallery in Buffalo, NY. While it's just 7 meters high, the progressively reducing size of the patterns gives the illusion it's much higher [read more: ]

Dunkan Bossion is a 3D helicopter and drone racing world champion. This is his remote controlled fighter jet being set up using vectoring system with turbine [source: ]

A brilliant overview of Boston Dynamics robots by CNET [📹: ]

Perhaps no animals have more of a reputation for their playful nature than river otters and this is true in any environment, be it water or snow. This one has been caught using its belly to slide on the snow [📹riley_lethbridge: ]

In ceramics, slip trailing is a technique that uses a fine pointed dispenser to apply liquid clay and create ornaments. Surface tension is crucial to the clay behavior [read more: ] [📹 bernardo.matteo: ]

Five metronomes are set to 176 bpm and placed on a Foam Core board. When empty cans are placed underneath, the board is free to move from side to side and the metronomes are able to influence each other into synchronization [read more: ]

Finnish operator Renkivain is an excavator perfectionist: their videos show the extreme and satisfying vituosity achieved with a volvo-ewr150e and its different tools [videos: ]

If you put some soap or ink on a leaf, you obtain a ink propelled boat, using the Marangoni effect. The ink or the detergent has a lower surface tension than water and its flow provides thrust to push the boat forward [more: ] [📹 ]

American Kestrels have super head stabilization skills, making it look locked in one position in the air. This video shows the natural ability this bird has to stabilize its head [📹 Talons and Teeth: ]

Azurite is a basic carbonate with the chemical formula Cu₃(CO₃)₂(OH)₂, a soft, deep-blue copper mineral produced by weathering of copper ore deposits [read more: ] [📹 Mineralcity/Tomasz Praszkier]

Artist BKArtchitect's artworks are often based on perspective and this clip shows how you can draw a city from above using a simple piece of string [Author's account: ]

'Confusing perspective' [📹 Larry Carlson: ]

Building a LEGO-powered Submarine with automatic depth control [📹 YouTube's Brick Experiment Channel: ]

Physics applied to setting a table #FridayFunday

When a ribbon eel adult male reaches full size, it begins to turn into a female changing its color to yellow [source of the clip: ]

TikTok user zdcy666666 created an ingenious graphic style where full artworks literally unfold from simply drawn icons [see more: ]