The hammered dulcimer is a percussion-stringed instrument which consists of strings stretched over a trapezoidal resonant sound board, played with a mallet hammer.
\[read more: buff.ly/3P0u7pl (https://buff.ly/3P0u7pl)\]
\[📹 Ted Yoder: buff.ly/2EhLzmW (https://buff.ly/2EhLzmW)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645447427317530624#m
One pretty cool geological fun fact is that the Scottish Highlands, the Appalachians, and the Atlas are the same mountain range, once connected as the Central Pangean Mountains
\[source: buff.ly/3oAZuKP (https://buff.ly/3oAZuKP)\]
\[read more: buff.ly/3VixkCM (https://buff.ly/3VixkCM)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645441513927725057#m
The strange case of the Cook pine trees, that tilt by 8.55° towards the equator, whatever the zone they live on Earth
\[read more: bit.ly/2qVIizO (https://bit.ly/2qVIizO)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645426410360586242#m
This is a 200 kilogram preserved blue whale heart
\[source, read more: buff.ly/3VDvmNk (https://buff.ly/3VDvmNk)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645421372582002689#m
A sneaker wave is a disproportionately large coastal wave that can appear in a wave train without warning. This video was shared by Marcella Ogata-Day to help bring awareness of the dangers of sneaker waves
\[source, read more: bit.ly/40YnF7i (https://bit.ly/40YnF7i)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645418305346256898#m
This remarkable cloud spotted from the summit of Mount Washington in New Hampshire on February 24, 2021 was a hybrid combination of two rare cloud species: the lenticular, and the Kelvin-Helmholtz wave cloud
\[source, read more: buff.ly/2Vi4mJA (https://buff.ly/2Vi4mJA)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645416338976915456#m
That time when we saw a smiley face inside the crater of the Kilauea volcano
\[full story: bbc.in/2aSEYOK (https://bbc.in/2aSEYOK)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645411307787808768#m
This ancient 20-sided crystal dice is about 2,000 years old. Like other polyhedral dice recovered from all over the Roman empire, this one is inscribed with Latin numbers and letters
\[source, read more: buff.ly/3M1szsT (https://buff.ly/3M1szsT)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645406273289211904#m
Filled with non-newtonian fluid, these speed bumps behave like a fluid when a car is under the speed limit. If the vehicle exceeds the speed limit, the fluid hardens and become a speed bump
\[source, video: buff.ly/2xIDxOX (https://buff.ly/2xIDxOX)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645378900309028864#m
The story of Noc, the Beluga whale that learned how to mimic human speech and told a diver to get out of his tank
\[full story: buff.ly/32UgeCb (https://buff.ly/32UgeCb)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645365126764085248#m
Dolphins produce all sorts of bubbles by releasing air from their blowholes, including bubble rings. Many of these serve as visual displays, a kind of communication signal
\[read more: buff.ly/3TkYrvS (https://buff.ly/3TkYrvS)\]
\[📹 Aaron Rix: buff.ly/3eIU6DL (https://buff.ly/3eIU6DL)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645359594388979713#m
The Math Dance
\[source: buff.ly/3ATcW24 (https://buff.ly/3ATcW24)\]
#MathMonday (https://nitter.moomoo.me/search?q=%23MathMonday)
https://nitter.moomoo.me/Rainmaker1973/status/1645355865103269888#m
This machine allows a simple, quick and effective tree relocation
\[source, full video: buff.ly/2phHkPf (https://buff.ly/2phHkPf)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645350800292552704#m
Turbulence is everywhere, but it is one of the least understood phenomena in classical physics. Now, researchers may have identified a mechanism by which it develops by smashing vortex rings head-on into each other
\[Harvard SEAS: buff.ly/388p3bb (https://buff.ly/388p3bb)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645345590811803649#m
The waxy monkey tree frog limits water loss, including reducing water loss through the skin by lipid secretions, spread over the surface of the skin by the legs in a complex sequence of wiping movements
\[video: buff.ly/2lhLK6Q (https://buff.ly/2lhLK6Q)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645342070616227841#m
The Thatcher effect is a phenomenon where it becomes more difficult to detect local feature changes in an upside-down face, despite identical changes being obvious in an upright face
\[read more: buff.ly/2DKqSMp (https://buff.ly/2DKqSMp)\]
\[📹 buff.ly/3lwEgNt (https://buff.ly/3lwEgNt)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645338771536134144#m
The story of the Lion of Gripsholm Castle, a notable historical example of bad taxidermy, or what a taxidermist can do to preserve a dead lion in the XVIII century's Sweden without seeing a live lion
\[read more: buff.ly/2HohiGU (https://buff.ly/2HohiGU)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645323769483784194#m
4 years ago #Today (https://nitter.moomoo.me/search?q=%23Today), the moment that changed everything in astronomy and astrophysics. The first-ever picture of the event horizon of a black hole was revealed by the Event Horizon Telescope team
\[video: buff.ly/2VzMLaX (https://buff.ly/2VzMLaX)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645320935598178304#m
20 years ago #Today (https://nitter.moomoo.me/search?q=%23Today), the retirement of all Concorde supersonic jets was announced simultaneously by British Airways and Air France, after a quarter century of passenger service that began on 21 Jan 1976
\[read more: buff.ly/2qnznIq (https://buff.ly/2qnznIq)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645319064938487808#m
The myotonic goat is characterised by myotonia congenita, a hereditary condition that may cause it to stiffen or fall over when excited or startled
\[read more: buff.ly/2tWvPAL (https://buff.ly/2tWvPAL)\]
\[📹 The Peahill Farm: piped.kavin.rocks/\_JF0Jys5ITc (https://piped.kavin.rocks/_JF0Jys5ITc)\]
https://nitter.moomoo.me/Rainmaker1973/status/1645120248473845761#m