Von Neumann's Machine

Magical & thermodynamical, non-classical & stochastical!
fuckyeahfluiddynamics:

As young stars form, they often produce narrow high-speed jets from their poles. By astronomical standards, these fountains are dense, narrowly collimated, and quickly changing. The jets have been measured at velocities greater than 200 km/s and Mach numbers as high as 20. The animation above (which you should watch in its full and glorious resolution here) is a numerical simulation of a protostellar jet. Every few decades the source star releases a new pulse, which expands, cools, and becomes unstable as it travels away from the star. Models like these, combined with observations from telescopes like Hubble, help astronomers unravel how and why these jets form. (Image credit: J. Stone and M. Norman)ETA: As it happens, the APOD today is also about protostellar jets, so check that out for an image of the real thing. Thanks, jshoer!

fuckyeahfluiddynamics:

As young stars form, they often produce narrow high-speed jets from their poles. By astronomical standards, these fountains are dense, narrowly collimated, and quickly changing. The jets have been measured at velocities greater than 200 km/s and Mach numbers as high as 20. The animation above (which you should watch in its full and glorious resolution here) is a numerical simulation of a protostellar jet. Every few decades the source star releases a new pulse, which expands, cools, and becomes unstable as it travels away from the star. Models like these, combined with observations from telescopes like Hubble, help astronomers unravel how and why these jets form. (Image credit: J. Stone and M. Norman)

ETA: As it happens, the APOD today is also about protostellar jets, so check that out for an image of the real thing. Thanks, jshoer!

(via geometryofdopeness)

hannahluoni:

Taking a week before I start my new job to get back into botanical illustration. I work at the Phipps COnservatory and their orchid and bonsai show started on the 17th. I was able to collect a few specimens that fell off while preparing for the show. 

(via scientificillustration)

mucholderthen:

SCIENTISTS, by artist Alan Kennedy on Flickr

  • Galileo Galilei and the moons of Jupiter
  • Isaac Newton: the motion of objects and spectrum of light
  • Charles Darwin and descent with modification via natural selection
  • Nicola Tesla and the age of electricity
  • Albert Einstein and spacetime

(via itsfullofstars)

redhousecanada:

subtilitas:

My interest is not to continue destroying what is already destroyed… When things die, new ideas are born. The tree’s leaves fall, rot, and disappear. For me, this building’s history, all the marks on the ground that should not be touched, were what should be emphasized, and it was this thought that gave birth to the ramps and the bridge.” (prev).

Sverre Fehn - Hedmark County Museum (renovation of a historic barn and medieval castle grounds), Hamar 1978. Via, Jiri Havran