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The current state of education. She has a point.
This is one of the most compelling testimonies as to what's happening in Antarctica ever heard
Mike Rowe was recently interviewed by Moms for America. This is a real eye opener.
What it takes to make a #2 pencil.
Watch the Jetson Personal Air Vehicle take flight, then order your own
Microneedles extract harmful cells, deliver drugs into chronic wounds
SpaceX Gigabay Will Help Increase Starship Production to Goal of 365 Ships Per Year
Nearly 100% of bacterial infections can now be identified in under 3 hours
World's first long-life sodium-ion power bank launched
3D-Printed Gun Components - Part 1, by M.B.
2 MW Nuclear Fusion Propulsion in Orbit Demo of Components in 2027
FCC Allows SpaceX Starlink Direct to Cellphone Power for 4G/5G Speeds
This concept is similar to a standard balloon, whereas a balloon uses helium or hydrogen to displace air and provide lift, a vacuum airship uses a rigid structure to maintain a vacuum to displace air and provide lift.
A vacuum airship made of a homogenous material cannot withstand the atmospheric pressure on Earth for any material humans have yet discovered, which can be proven using the critical buckling load of a sphere. However, from an initial analysis of the vacuum airship structure and relationship to atmospheric conditions, Mars appears to have an atmosphere in which the operation of a vacuum airship would not only be possible, but beneficial over a conventional balloon or dirigible. In addition, a multi-layer approach, in conjunction with a lattice, would circumvent the buckling problems of a single homogenous shell. The lattice used to support the two layers of the vacuum airship shell can be made, using modulation of the lengths of the members, to fit the curvature of the vacuum airship precisely by following an atlas approach to the modulation.