What do modern vehicles have in the doors to protect the passenger compartment?

All modern Vehicles have internal steel beams in the door, which helps to protect the passenger compartment.


Just a few decades ago, passenger cabins were particularly vulnerable to a crash, especially if this occurred from the side of the car.

Car manufactures have spent considering time, research and money into developing light-weight and ergonomic-friendly safety measures to protect passengers.

The Women's Army Corps was the women's branch of the United States Army. This poster would have been used to promote the army and encourage women to join. So, not just encouraging women to to join the army but also spreading national pride and war support. Though women could not fight in combat, this poster might also inspire men through either pride or shame. For example, if  a man saw this poster and felt he was not doing enough for his country, or as much as some women then that's another recruit. If that makes sense.

Explanation:

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