Akira. Directed by Katsuhiro Otomo. Created by Tatsunoko Production, TMS Entertainment.
This image shows a ternary flame system with a Santoro burner below a ring burner. The steady soot column generated by the acetylene diffusion flame passes into the hydrogen ring flame, where it is oxidized. This allows soot oxidation to be studied in the absence of soot formation. The camera is a Nikon D100 digital still camera at 6.1 megapixels. This research is supported by NSF.
Credit: H. Guo, P.M. Anderson, P.B. Sunderland (University of Maryland)
An interesting model of our solar system’s path as it travels through space in the Milky Way.
Certainly a departure from usual models that show the Sun as a static object, which it certainly isn’t
I had no idea this was happening. Where are we going?
To fuck some shit up
me on my way to steal yo girl
I wish I knew where this was sourced from….cuz it’s pretty nifty.
On the 28th of October 1971, the UK launched Prospero - a science and technology demonstration satellite - on top of a Black Arrow rocket at Woomera, Australia. This made the UK the 6th nation to demonstrate a working orbital launch capability.
Sonoluminescence is a phenomenon that occurs when a small gas bubble is acoustically suspended and periodically driven in a liquid solution at ultrasonic frequencies, resulting in bubble collapse, cavitation, and light emission. The thermal energy that is released from the bubble collapse is so great that it can cause weak light emission. The mechanism of the light emission remains uncertain, but some of the current theories, which are categorized under either thermal or electrical processes, are Bremsstrahlung radiation, argon rectification hypothesis., and hot spot. People are beginning to lean more towards thermal processes as temperatures have consistently been proven with different methods of spectral analysis. In order to understand the light emission mechanism, it is important to know what is happening in the bubble’s interior and at the bubble’s surface.
The inertia of a collapsing bubble generates high pressures and temperatures capable of ionizing a small fraction of the noble gas within the volume of the bubble. This small fraction of ionized gas is transparent and allows for volume emission to be detected. Free electrons from the ionized noble gas begin to interact with other neutral atoms causing thermal bremsstrahlung radiation. Surface emission emits a more intense flash of light with a longer duration and is dependent on wavelength. Experimental data suggest that only volume emission occurs in the case of sonoluminescence. As the sound wave reaches a low energy trough the bubble expands and electrons are able to recombine with free ions and halt light emission. Light pulse time is dependent on the ionization energy of the noble gas with argon having a light pulse of 160 picoseconds.
Although the bubble above is illuminated with a floodlight that is shining directly into the camera the flash of light – sonoluminescence is easily seen as the bubble reaches its minimum radius.
Watch the video: here
Credit: Seth Putterman
An F-35B test aircraft completes the first-ever vertical takeoff (VTO) at NAS Patuxent River, Md., on May 10, 2013. While not a capability used in combat, VTOs are required for repositioning of the STOVL in environments where a jet could not perform a short takeoff. In these cases, the jet, with a limited amount of fuel, would execute a VTO to travel a short distance.