Response from: George Elvin

The linked report says that "the objective is to reduce the effects of 'blunt trauma' on the wearer after being struck by a bullet." The author's journal article will have precise numbers on shock absorption.

Response from: Gary Day

Might stop a projectile but will it absorb the shock as well?

Response from: National Marine Engineers Beneficial Association

A piece of diamond having 1903 atoms was used as a bullet with its speed varying from 100 to 1500 m/s. The bullet dimension was selected such that the width is larger than the width of the biggest nanotube after flattening. The bullet was released from a target about 15 Â from the center axis of the nanotube and moved at a constant speed in the horizontal direction i.e., perpendicular to the nanotube axis, as shown in the graphic above. The nanotube performance was examined for bullet released with various speeds at various positions using the classical molecular dynamics method.

Response from:

Will the whole impact side of the t-shirt go rigid? Sounds awesome, might make excellent space craft armor as well.