576
Light tubes are physical structures used for transmitting or distributing natural or artificial light for the purpose of illumination [buff.ly/3uDYKGs]. This video shows how a solar tube works [full video: buff.ly/3bGYttH]
577
Hypercubes are geometric art toys made by Andreas Markus Hoenigschmid. A single Cube consists of 12 individual Pyramids. Each one connected on two sides and carrying one magnet to help stabilize the major structures buff.ly/301KOKs [gif: vimeo.com/99561027]
578
The Incline Gravity Clock has no batteries or mainspring but it's powered by gravity. As the clock rolls down the incline, gravitational potential energy is translated into the kinetic energy of the moving clock gear train and oscillating balance wheel buff.ly/3wpZTTp
579
A flight landing in Munich just after sunrise with beautiful swirls, result of the plane’s wingtip vortices [2015 photo by Timo Harsch. Source, hi-res: bit.ly/2eVbB55]
580
This video by YouTube channel EngelsCoachShop shows how a wheelwright builds a 460 kg wooden wagon wheel that will be turned into a chandelier [full video + read more: buff.ly/3ob5mcQ-]
581
This amber bear amulet was found in 1887 in a peat bog near Slupsk, a city in northern Poland and has been dated between 5000 and 2000 BCE. But you cannot eat it [read more: buff.ly/3R3d6eb]
582
Scallops have a large number (up to 200) of small (about 1 mm) eyes arranged along the edge of their mantles. Each one relies on a concave, parabolic mirror of guanine crystals to focus and retro-reflect light thru millions of square tiles [read more: buff.ly/2NougG2]
583
At first glance, it looks like a fiery monster out of "The Incredibles". But it's a still incredibly rare, 65-foot-tall (20 meters) lava-dome fountain captured on October 11, 1969, in Hawaii when Mauna Ulu volcano erupted [source, read more: buff.ly/2q7bfdP]
584
Norwegian nature photographer Thomas Mørch knows how to get the perfect moment: this backlit bird's plumage captured while in flight is simply awesome [source: ow.ly/XlDr30ncdA6]
585
Hiccups are an involuntary movement triggered partly by the autonomic nervous system (which controls the heartbeat, pupil dilation & other involuntary bodily functions). This is true for animals too and specifically for cats buff.ly/3bOinTn [gif: buff.ly/2MwVw6f]
586
In the early morning of 2013 May 10, from Western Australia, the Moon was between the Earth and the rising Sun. In an annular eclipse, the Moon is too far from the Earth to block the entire Sun, resulting in what is known as a ring of fire [source: buff.ly/3d395Se]
587
Claudia Bueno’s installations are countless white line drawings meticulously intertwined and superimposed on glass panels. When illuminated, they mimic scores of nautilus spirals, coral, vines, and botanics that sway and throb in glowing masses [more: buff.ly/3sDOP1B]
588
Honey badgers are rather astonishing problem solving Houdinis. Wildlife conservationist Brian Jones explains as clever Stoffel works diligently to escape any space he’s kept in at the Moholoholo Wildlife Rehabilitation Centre in South Africa [video: buff.ly/30F5NhI]
589
Have you ever seen a 9-gigapixel map of the Milky Way galaxy? This jaw-dropping zoomable image by ESO contains ~84 million stars and it's unlike anything you’ve ever seen. The original image has 24.6 gigabytes [image: buff.ly/R1dS5X] [read more: buff.ly/3D9FR1Y]
590
This model shows what happens when neutron stars collide: they emit gravitational waves that are now detectable; when they collided, a flash of light in the form of γ rays is also emitted and seen on Earth about two seconds after the gravitational waves ow.ly/cYoz30naFC7
591
Honey is the only food that never expires. The same honey that was buried with the pharaohs in Egypt is still considered ‘edible’ by scientists. The science behind honey’s eternal shelf life [read more: ow.ly/jxZp30nbN8t]
592
Sometimes even the highest skyscraper needs an inspection. This video shows the operation conducted by Andy Veall and his team in 2015 at 829.8 m (2,722 ft) over Dubai [source of the gif and full video: buff.ly/304wAbX]
593
Although it was captured back in 2007 this photo by David Burdeny still remains one of the coolest iceberg photos in existence thanks to the perfect composition and symmetry that separates the photo into four different sections of colour and texture buff.ly/2Iy0GXY
594
The Taiwan blue magpie is a species of bird of the crow family. Also known as “long-tailed mountain lady”, is considered a rare and valuable species and has been protected by Taiwan [read more: buff.ly/2GBQrBl] [source of the image, Su Min Du: buff.ly/2NFli9e]
595
The story of Tom Brown, the retired engineer that became 'apple hunter', rescuing over 1,000 'lost' varieties in the last 25 years [read more: buff.ly/2S2eKDM]
596
Normally, there aren't grandparents around when an animal is born. But this clip of a bonobo playing with her baby granddaughter tells us there are notable exceptions
[read more: buff.ly/2J1nPHm]
[📹 Cincinnati Zoo: buff.ly/3F8FpRO]
597
Simon Berger's unique sculptural language explores the depth of his material through striking and cracking the glass he works on with a hammer. This was obtained with hammered and layered glass sheets
[site: simonberger.art]
598
There are no plants in this picture.
pink: orchid mantis
brown: ghost mantis
dark green: hooded mantis
light green: leaf insect
grey: cat-eyed mantis
[source: buff.ly/3Q0XfLI]
599
The heights of the statues around the world
[📹 Metaball Studios: buff.ly/3JXCUEj]
600
Sea wolves are genetically distinct from their inland cousin. Their diet consist of up to 90% seafood, 25% of which is fish. They are also great swimmers: the farthest record is to an archipelago 12 km from the nearest landmass [source, read more: buff.ly/3r037t9]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links