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STM images of monomer 2 deposited on the clean Ag(111) surface after annealing to 425 K, ACS Nano, 2015, 9 (9), pp 9228–9235 Courtesy ACS

STM images of monomer 2 deposited on the clean Ag(111) surface after annealing to 425 K, ACS Nano, 2015, 9 (9), pp 9228–9235 Courtesy ACS

Low temperature SEM magnification series for a snow crystal.   8 images of a snow crystal continually zoomed in until 36000x...Amazing

Low temperature SEM magnification series for a snow crystal. 8 images of a snow crystal continually zoomed in until 36000x...Amazing

Supersonic Shock Wave
When an object moves faster than the speed of sound, funny things start to happen. The bullet in the image above is moving so fast, the air in front of it can’t get out of the way quickly enough. So it starts to pile up in front of the bullet, forming an area of compressed air — a shock wave.

The same thing happens with supersonic jets. As they fly faster than the speed of sound, they build up a shock wave in front of them. The sonic boom that accompanies these…

The Weird and Beautiful World of Fluid Dynamics

Supersonic Shock Wave When an object moves faster than the speed of sound, funny things start to happen. The bullet in the image above is moving so fast, the air in front of it can’t get out of the way quickly enough. So it starts to pile up in front of the bullet, forming an area of compressed air — a shock wave. The same thing happens with supersonic jets. As they fly faster than the speed of sound, they build up a shock wave in front of them. The sonic boom that accompanies these…

A colorized scanning electron microscope picture of a nerve ending that has been broken open to reveal the synaptic vesicles (orange and blue) beneath the cell membrane. By Tina Carvalho

A colorized scanning electron microscope picture of a nerve ending that has been broken open to reveal the synaptic vesicles (orange and blue) beneath the cell membrane. By Tina Carvalho

an ancient  prophecy of the Hopi said that one day there would be giants walking over the land carrying ropes that sing. And people would talk on spider webs and there would be roads in the sky, (jettrails).All these have come true. You might wish to read about the Hopi people and the hisatsinom.

an ancient prophecy of the Hopi said that one day there would be giants walking over the land carrying ropes that sing. And people would talk on spider webs and there would be roads in the sky, (jettrails).All these have come true. You might wish to read about the Hopi people and the hisatsinom.

The silent spread of sexually transmitted infections (STIs) Nearly half a million people in the UK are diagnosed with a sexually transmitted infection (STI) every year. However, the number of actual cases is likely to be far higher as STIs can often be passed on unwittingly.

The silent spread of sexually transmitted infections (STIs)

The silent spread of sexually transmitted infections (STIs) Nearly half a million people in the UK are diagnosed with a sexually transmitted infection (STI) every year. However, the number of actual cases is likely to be far higher as STIs can often be passed on unwittingly.

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