Drilling the World's Smallest Hole

That reminds me of the old story between tow wire companies where one send a sample of their finest wire to show off how fine a product they can make and the competitor sent it back to them hollowed out.

Not to poo-poo this accomplishment, but I can buy a drill that is 38 microns and use a vertical machining center to drill the hole. I would hope that you could machine something finer with an EDM process. BTW, how thick was the material? The higher the depth/diameter ratio, the more significant the accomplishment.

Well, a neutrino can effortlessly drill an infinitesimally small hole through 8,000 miles of planet Earth. Add to that it is perfectly straight.

We just need to go to Home Depot and get one of those Royobi neutrino hammer drills when they go back on sale.

Okay, before everyone else piles on, I know that the neutrino actually doesn't contact any matter because it is on essentially zero mass and zero size. So, the odds of actually colliding with another particle is literally astronomical.