Showing posts tagged science

Tycho Supernova remnant in X-ray light

(Source: Wikipedia)

marswiggles:

Sol 229, Left Mastcam — Curiosity spins its turret once again.

(Reblogged from marswiggles)

Museum samples of a female Surinam toad with embedded, fully formed froglets on the back.

video here

The Surinam toad or star-fingered toad (Pipa pipa) is a species of frog in the Pipidae family. The Surinam toad has minute eyes, no teeth and no tongue.

Surinam toads are best known for their remarkable reproductive habits. Unlike the majority of toads, the males of this species don’t attract mates with croaks and other sounds often associated with these aquatic animals. Instead they produce a sharp clicking sound by snapping the hyoid bone in their throat.[1] The partners rise from the floor while in amplexus and flip through the water in arcs. During each arc, the female releases 3–10 eggs, which get embedded in the skin on her back by the male’s movements. After implantation the eggs sink into the skin and form pockets over a period of several days, eventually taking on the appearance of an irregular honeycomb. The larvae develop through to the tadpole stage inside these pockets, eventually emerging from the mother’s back as fully developed toads, though they are less than an inch long (2 cm). Once they have emerged from their mother’s back, the toads begin a largely solitary life.

itscolossal:

Unfinished cooling tower at Satsop Nuclear plant in Washington state.

(Reblogged from holidayzero)
marswiggles:

Mastcam L/R, Sol 53 (2012-09-29 13:22:49 UTC) — Found one can get decent stereoscopic effects from Curiosity’s Mastcam despite differing focal lengths, with just a bit of resizing and aligning of the 100mm lens capture over the 34mm.

marswiggles:

Mastcam L/R, Sol 53 (2012-09-29 13:22:49 UTC) — Found one can get decent stereoscopic effects from Curiosity’s Mastcam despite differing focal lengths, with just a bit of resizing and aligning of the 100mm lens capture over the 34mm.

(Reblogged from n-a-s-a)

The Milky Way Galaxy, seen at different wavelengths

(source)

(Source: milesian)

(Reblogged from thepkdickhead)
n-a-s-a:

Venus’ South Polar Vortex 
Credit: ESA, Venus Express, VIRTIS, INAF-IASF, Obs. de Paris-LESIA

n-a-s-a:

Venus’ South Polar Vortex

Credit: ESA, Venus Express, VIRTIS, INAF-IASF, Obs. de Paris-LESIA

(Reblogged from n-a-s-a)

“Too Fat To Kill”

submission via hatebeams. for context:

A laser beam passes through a “split-time lens” - a specially designed waveguide that bumps up the wavelength for a while then suddenly bumps it down. The signal then passes through a filter that slows down the higher-wavelength part of the signal, creating a gap in which the cloaked event takes place. A second filter works in the opposite way from the first, letting the lower wavelength catch up, and a final split-time lens brings the beam back to the original wavelength, leaving no trace of what happened during the gap.

Now you see it, now you didn’t: Cloaking a moment in time - Cornell University’s Chronicle Online

A laser beam passes through a “split-time lens” - a specially designed  waveguide that bumps up the wavelength for a while then suddenly bumps  it down. The signal then passes through a filter that slows down the  higher-wavelength part of the signal, creating a gap in which the  cloaked event takes place. A second filter works in the opposite way  from the first, letting the lower wavelength catch up, and a final  split-time lens brings the beam back to the original wavelength, leaving  no trace of what happened during the gap. 
Now you see it, now you didn’t: Cloaking a moment in time - Cornell University’s Chronicle Online
… The researchers created what they call a time lens, which can manipulate  and focus signals in time, analogous to the way a glass lens focuses  light in space. They use a technique called four-wave mixing, in which  two beams of light, a “signal” and a “pump,” are sent together through  an optical fiber…

A laser beam passes through a “split-time lens” - a specially designed waveguide that bumps up the wavelength for a while then suddenly bumps it down. The signal then passes through a filter that slows down the higher-wavelength part of the signal, creating a gap in which the cloaked event takes place. A second filter works in the opposite way from the first, letting the lower wavelength catch up, and a final split-time lens brings the beam back to the original wavelength, leaving no trace of what happened during the gap.

Now you see it, now you didn’t: Cloaking a moment in time - Cornell University’s Chronicle Online

… The researchers created what they call a time lens, which can manipulate and focus signals in time, analogous to the way a glass lens focuses light in space. They use a technique called four-wave mixing, in which two beams of light, a “signal” and a “pump,” are sent together through an optical fiber…

vibrational:

for discrete atoms, one can construct waves of different wavelengths and speeds that all corresponds to a wave inside from a single mode of vibration.

(Reblogged from spacetronicsreborn)

http://images.sciencedaily.com/2007/09/070905134523-large.jpg