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kottke.org posts about Mark Rober

A Kid-Friendly Explanation of How Hand Washing with Soap Clobbers Coronavirus

posted by Jason Kottke   Mar 19, 2020

I don’t know if they specifically had this in mind when making it, but this video from Vox about the importance of hand washing with soap to kill coronavirus is very kid-friendly. From my pals at the excellent The Kid Should See This

Wash your hands for 20 seconds with soap and water. This is the very best way to kill viruses like coronavirus. But why? What’s happening on our hands when we use soap and water? And why do we have to wash with soap for 20 seconds? Why not ten?

The glow-in-the-dark explanation of the 20-second rule was extremely convincing.

See also How to Wash Your Hands Properly and Washing Your Hands Is Important Because Soap “Absolutely Annihilates” Coronavirus. (via tksst)

Update: Mark Rober did an experiment with a powder that glows under UV and can be transferred from surface to surface (or hand to surface). You can see the germs spreading from person to person and all over that classroom. Yikes.

The Rock Skipping Robot

posted by Jason Kottke   Jul 01, 2019

Mark Rober built a rock skipping robot and by adjusting a bunch of different parameters, he figured out the best way to skip rocks. And no, I completely did not get out a notepad and start jotting down notes while watching this video and there’s no way I’m heading out to one of my favorite rock skipping places tomorrow morning to try out some new techniques. Nope. Not gonna happen. (thx, tom)

Package Thief vs. Glitter Bomb Revenge Package

posted by Jason Kottke   Dec 18, 2018

This is pretty nerdy and entertaining. After someone stole a package off of his porch, Mark Rober spent months designing and building a fake package to get revenge on the next person stupid enough to try it. He outfitted the box with GPS, motion sensors, four cameras that auto-uploaded to the cloud, a glitter bomb that detonated when the package was opened, and a canister of fart spray that sprayed periodically until the thief threw the package out. Genius.

Update: At least some of the package robberies in this video were staged.

But shortly after the ode to all the packages we’ve lost before swept across the media landscape, viewers on the internet did what they do best: pick it apart.

They noticed some strange coincidences, like how one of the porch bandits seemed to live directly next door to Rober’s friend, Cici, and that the car used in one of the heists, a black Ford Focus with a rosary hanging on the mirror, was parked right in front of her house in Pittsburg, California.

Way to ruin Christmas, you jackholes.

The art and science of carnival games and how to win them

posted by Jason Kottke   Dec 28, 2017

Mark Rober and some friends staked out the carnival games at a local fair for the day in order to find the scams and the ones you can win…if you know how. Armed with info from their observations, Rober hit the fair with a Mets player who could dominate all the throwing games and cleaned them out.

I spent some time at a county fair this past summer and, if you’re with little kids, the carnies will sometimes show you how to win the games that are winnable (like the basket toss). But even after he was shown, my son still couldn’t get that damned wiffle ball in the basket on the two-out-of-three times needed to win a prize.