enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Impact attenuator - Wikipedia

   en.wikipedia.org/wiki/Impact_attenuator

   Many newer attenuators use crushable materials (like various kinds of foam) that create a crumple zone, absorbing energy. [2] Others flatten a corrugated steel guard rail section, or split a steel box beam. Friction. Some attenuators work by forcing a steel cable or strap through an angled slot or tube, converting kinetic energy into heat.

3. Memory foam - Wikipedia

   en.wikipedia.org/wiki/Memory_foam

   A memory foam mattress is usually denser than other foam mattresses, making it both more supportive and heavier. Memory foam mattresses are often sold for higher prices than traditional mattresses. Memory foam used in mattresses is commonly manufactured in densities ranging from less than 24kg/m 3 (1.5 lb/ft 3) to 128kg/m 3 (8 lb/ft 3) density

4. Thermosetting polymer - Wikipedia

   en.wikipedia.org/wiki/Thermosetting_polymer

   Left: individual linear polymer chains Right: Polymer chains which have been cross linked to give a rigid 3D thermoset polymer. In materials science, a thermosetting polymer, often called a thermoset, is a polymer that is obtained by irreversibly hardening ("curing") a soft solid or viscous liquid prepolymer (). [1]