Special tent designs include mountain tents, which are designed compactly for use in conditions of extreme cold and heavy snow, and back-packing tents, which use extremely lightweight synthetic fabrics and lightweight metal poles.
The new materials allow for extremely lightweight components and cases, Mr. Thompson said.
The design makes the catamarans extremely lightweight, but still able to carry a large sail area.
Kevlar, which is extremely lightweight, is remarkably tough; it's what bulletproof vests are made of.
Adoption of a water-filled containment makes the MRX extremely lightweight and compact.
Thin membranes are used in the spacecraft industry as extremely lightweight structural components.
"There is not a lot of wind on the lake, and the hull is extremely lightweight, so it takes less wind to make it go," Mr. Bird said.
He also envisioned what he called Cloud Nines, communities that would dwell in extremely lightweight spheres, covered in a polyethylene skin.
Balsa (Ochroma pyramidale), also called balsa tree, fast-growing tropical tree in the mallow family (Malvaceae), noted for its extremely lightweight and light-coloured wood.
It feels extremely lightweight on the skin and looks glorious in photographs – plenty of glow and brightness, but with neither grease nor glare.
"The fundamentals allow you to have extremely lightweight structures [and] extremely low cost because everything is basically plastics and fabrics as opposed to precision machined metals," he says.
