Players can wear guardian caps in game now

[Megatron96]

Not too long ago I watched a video on YT about how common ceramic tiles could effectively stop bullets. The kind that we probably all either have seen or have had in our bathrooms floors. Along the way they actually described the physics involved. It was a pretty interesting little video.

Which got me to thinking tonight. Essentially what those tiles did was disperse nearly 100% of the impact energy of those bullets across their entire surface almost instantly as they shattered into dust, and thereby reducing the bullet's penetration to just a couple inches.

So why not do something similar inside a helmet? Now, the problem obviously is the helmet would be a one-and-done type of thing, which wouldn't really be cost-effective.

But I was reading an article in either Popular Mechanics or Scientific American about new materials that could be re-formed by running an electric current through them. It might someday be possible to make tiles out of a material (maybe simply iron-infused ceramics?) that could re-form itself via electrical current after each big hit. Maybe.

I'm not a scientist or engineer, so I'm sure there's a small pile of technical issues to deal with before something like that could be used in the NFL, but the tech is being researched right now.