With Fuzzy Nanoparticles, Researchers Reveal a Way to Design Tougher Ballistic Materials

https://www.nist.gov/news-events/news/2021/12/fuzzy-nanoparticles-researchers-reveal-way-design-tougher-ballistic

"the researchers opened fire on the PGN composite films of different molecular masses with a technique known as Laser-Induced Projectile Impact Testing, or LIPIT... They determined the velocity of the projectile in transit and on impact through images captured with a camera and strobe light flashing every 100 nanoseconds (billionths of a second). From there, the team had what it needed to calculate the energy it took to tear through the film, a quantity directly tied to toughness"