An anti-ship mega-turret for planetary defense. It looks like a projectile launched. At that scale, the shockwave from firing might flatten the surrounding buildings...
#space#art by Martin Parker
https://t.co/wgUY6i0dMZ
@SSkorkowsky I am 100% convinced this song — being the ubiquitous mind worm it is for our entire generation — was actually embedded with powerful subliminal code — but that encoded version was ONLY present on its 83rd national radio play broadcasting — which of course — all of us heard
What is the maximum temperature of matter?
Yes, it exists.
The Hagedorn temperature at 1,700,000,000,000 Kelvin is the point where all matter evaporates into quarks. Adding more energy just makes more quark–antiquark pairs pop into existence rather than making things hotter.
A great infographic on the moons of Saturn.
The little trailing moons like Calypso or Polydeuces could serve as anchors for a surface-to-orbit tether to Tethys or Dione after low deltaV repositioning.
Super-large scale here:
https://t.co/uS2PM8SMns
It's interesting how often scifi spacecraft need artificial surface lighting to become visible.
One day, mainstream artists will discover the wonders of glowing radiators...!
Here's a terrifying thought:
The USS Thresher submarine had a test depth of -400m. Due to combined failures, it lost propulsion and ballast control. It sank to -780m.
At that depth, pressure is 78 bar. The hull imploded. The steel walls must have caved in within 0.1 seconds.
A giant nuclear-powered Ground-Effect Vehicle with vectored thrust, lift fans, VLS cells and CIWS defences.
An excellent creation by Tom Alfaro.
#art
https://t.co/aYWoOkYpcw
The colony drop from Gundam The Origin movie.
The structure is 4.5 billion tons striking at nearly 11 km/s. That's 65 gigatons of energy. Its sectional density is 139 tons/m^2, meaning it would easily get through the 10 tons/m^2 atmosphere.
https://t.co/OiucFcFCCX
Gotta admit, having no idea what this was about (or by) I went from, "This looks neat, to, "OH, HELL YES!" when the main character stepped in.
Look forward to seeing it.
https://t.co/w8fiz3QchY
The X-12 nuclear-electric locomotive.
Its reactor would be held inside a 200 ton radiation shield and have a 20m long radiator car dedicated to cooling it. Steam circulating directly through the nuclear fuel would drive a turbine to generate 5.1 MW of electricity.