1251
Mexico City is a huge metropolis with a population of about 21.3 million people: seen from above in the photos by Pablo Lopez Luz, it may give you the impression of being a big tide of people and buildings [source, read more: buff.ly/2rdNUYq]
1252
This short clip shows a 22 million year old termite preserved in amber found in the Dominican Republic. It also presents water trapped inside its cavities
[📹 Rocks for the Spirit: buff.ly/3lz4y11]
1253
Mount Taranaki National Park has an almost perfectly circular boundary: the change in vegetation is so sharply delineated that the photos from above show an incredibly neat base [read more: buff.ly/2jp3r3B]
1254
When bison returned to Badlands National Park after nearly 150 years. In October 2019 they celebrated the park opening up 22,000 acres of new bison range and almost 1,200 bison now have 80,000 acres to graze, after being absent since 1870 [read more: buff.ly/2MhVvQT]
1255
The boundary between Scottsdale, Arizona and the Salt River Indian Reservation
[Edward Burtynsky, 2011: buff.ly/2CxiqmD]
1256
How the Big Dipper constellation shape changed in the last 100,000 years and how will change in the future 100,000 years [source: ow.ly/JDuW30nsyvR] [read more: buff.ly/2jJqipj]
1257
What is beneath the world’s largest ice sheet? Compiled by the British Antarctic Survey and made from Operation IceBridge data, this animated map of the changing Antarctic Ice Sheet reveals the bedrock terrain below with a level of detail never seen before buff.ly/35vesHb
1258
«When I woke up just after dawn on September 28, 1928, I certainly didn’t plan to revolutionize all medicine by discovering the world’s first antibiotic. But I guess that was exactly what I did»
#Today in 1928, Alexander Fleming discovered penicillin
buff.ly/3m6l5c9
1259
These are the attendees of the Fifth Solvay International Conference, held in October 1927. 17 out 29 were or became Nobel Prize winners. Marie Curie had already won Nobel Prizes in two separate scientific disciplines
[source, colorized: ow.ly/VdAv30nte33]
1260
The Indian Bullfrog may not look like much, but its appearance can change dramatically. During most of the season, both genders are a rather dull kaki-olive-green, but once the mating season comes around, things change drastically [read more: buff.ly/2jm7T31]
1261
Fletcher Capstan Table is a round table which, when rotated at its outer perimeter, doubles its seating capacity and remains truly circular [read more: fletchertables.com]
1262
Originating in Australia, Boulder Opal is composed of two parts: the host rock, which is usually an ironstone or sandstone, and a precious opal. It’s formed when the silica compound has water in it, penetrates the rock, and deposits opal in the cracks ow.ly/quaU50wJUK6
1263
In this awesome recreation of the iconic album cover for Pink Floyd’s "Dark Side of the Moon", Aldo Cavini Benedetti uses thread and a needle to replicate the prism and spectrum of light [source: buff.ly/2KqgAFG]
1264
This strange creature was discovered by marine biologists in 2007. Teuthidodrilus, commonly known as the "Squidworm", is just as flamboyant as it is strange in appearance. ROV cameras reveal its highly interesting methods of swimming [full video: buff.ly/2q686Od]
1265
All objects, big or small, cast shadows and so do mountains. However, one particular peak displays a peculiar behavior – it cast shadows not only on the ground, but also up in the clouds [source, read more: buff.ly/2xso9qN]
1266
Tree shaping (also known by several other alternative names) uses living trees and other woody plants as the medium to create structures and art. Some of these creations are definitely stunning
[read more: buff.ly/2FxhzQP]
[📷 Peter Cook: pooktre.com]
1267
More than 100 years ago scientist Felix d’Herelle identified bacteriophages. They look like spaceships from another world & are most fearsome killing machines, fortunately they are targeting exclusively bacteria [source, biolution: buff.ly/3rM1z9v]
1268
There are 1.4 billion insects for each one of us. Though you often need a microscope to see them and you might even hate them, we need (almost) every one of them. Or without bugs, we might all be dead [read more: buff.ly/3osAWUI]
1269
In November 2021, a ROV operated by Monterey Bay Aquarium Research Institute captured this clip of a giant phantom jellyfish, more than 1,000 m deep. Scientists have only encountered it ~100 times in ~120 years
[📹 @MBARI_News: buff.ly/3yaJhzS]
1270
Matt Baker creates helpful visual guides that condense thousands of years of history. His poster Evolution of the Alphabet looks at nearly 3,800 years of the alphabet’s evolution, tracing it from Egyptian hieroglyphs to the present forms we use today buff.ly/3LRadLN
1271
Ever wonder what a vinyl record looks like under an electron microscope? This is a 1000x magnification of a track
[read more: buff.ly/2JN5w4l]
[How the stereo LP groove works: buff.ly/2SclXz2]
1272
This requires a mandatory center of mass analysis
[📹 ellariya_bohdanova & karinasandovich: buff.ly/3Chdvot]
1273
In the morning of September 28th, Ian became a category four hurricane with maximum sustained winds of 250 km/h (155 mph). This is Ian's lightning-packed eye wall
[source, more, RAMMB-CIRA: buff.ly/3Cr4bi1]
1274
Tampa Bay water receded ahead of Hurricane Ian. It's physics on a large scale: winds are swirling counter-clockwise as it moves northward along the peninsula, so its winds are whipping the water away from the shoreline [more: buff.ly/3E1VRWP]
1275
Sea anemones can swim by rapid movements of the tentacles beating synchronously like oar strokes. This one was filmed in the Maldives
[read more: buff.ly/3EuiXD0]
[📹 sideytheshark: buff.ly/3rIORbn]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links