Wood is great. It looks nice as a building material. It grows right out
of the ground. But compared to things like concrete, marble, and steel,
it's not all that strong. Well, it didn't used to be, anyway. Scientists
have now created a "super wood" that's strong enough to stop a bullet.
This isn't the world's first engineered wood. Chances are,
you've got some in your house right now. Plywood, fiberboard, and
particleboard are all made by compressing smaller pieces of wood into a
single chunk that's stronger than its composite parts. Of those three,
plywood is the strongest, since it's made with thin layers whose grain
is set at perpendicular angles. You don't have to worry about the wood
being weak along the grain because every layer is sandwiched between two
others running the opposite direction. But if you want to stop a
bullet, we wouldn't recommend jumping behind a plywood barrier. For
that, you'll need
super wood.
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