energy-absorbing

By design, school buses are also “compartmentalized” to provide crash protection through their higher energy-absorbing seat backs and closely spaced seating rows.

Back-to-School: Hop on the bus, Gus, with these safety tips 2010

I would also agree with this; an expectation of the existence of theoretical energy-absorbing devices as a sign of other civilizations just speaks to the hubris of it all.

VOTD: Neill Blomkamp’s TED Talk: Life On Other Planets and the Future of Human Civilization | /Film 2010

The donated items, which are joining the museum's permanent exhibition about American transportation, include a prototype for the three-point seat belts that became a requirement in the 1970s, an energy-absorbing steering column from a 1967 Chevrolet, a crash pad invented in the 1930s to cover steel dashboards and some of AAA's first driver-education manuals.

Crash dummies' body parts and costumes land at American History museum 2010

By design, school buses are also “compartmentalized” to provide crash protection through their higher energy-absorbing seat backs and closely spaced seating rows.

Back-to-School: Hop on the bus, Gus, with these safety tips 2010

And, by design, large school buses are “compartmentalized” to provide an envelope of crash protection with taller, energy-absorbing seat backs and closely-spaced seating rows.

When the wheels on the bus go 'round and 'round, sit down 2009

The small structure of a compact car has less energy-absorbing potential.

Smaller Cars Get Low Grades 2009

And, by design, large school buses are “compartmentalized” to provide an envelope of crash protection with taller, energy-absorbing seat backs and closely-spaced seating rows.

When the wheels on the bus go 'round and 'round, sit down 2009

Used in more than 15 countries for tasks such as ferrying workers to and from offshore oil platforms and transporting government officials, the helicopters include advanced safety features such as energy-absorbing seats, bird-strike protection systems and anti-icing equipment for rotors.

FAA Sets Immediate Fixes for Some Sikorsky Helicopters 2009

By design, school buses are also “compartmentalized” to provide crash protection through their higher energy-absorbing seat backs and closely spaced seating rows.

National School Bus Safety Week: How safe are school buses? 2009

By design, school buses are also “compartmentalized” to provide crash protection through their higher energy-absorbing seat backs and closely spaced seating rows.

National School Bus Safety Week: How safe are school buses? 2009