3 ms·
This guy should not be a health professional. "But helmets are not supposed to shatter" - not true. Many bike helmets are designed to shatter on impact, that's
by imaginenore 11y ago
This guy should not be a health professional.
"But helmets are not supposed to shatter" - not true. Many bike helmets are designed to shatter on impact, that's how they absorb the energy.
http://www.bhsi.org/standard.htm http://www.bhsi.org/standard.htm