Toysmith Euler's Disk - 791709

Euler's Disk

A fun science demonstration of kinetic energy, low friction and reflective light. I first seen it on the Big Bang Theroy and got one for my grandsons (and me) to mess around with. You can also see it on You Tube.Read full review

Verified purchase:  Yes • Condition: new • Sold by: -7SJnYGzTAa@Del...

Awesome, enchanting toy

LOVE IT! Can't stop spinning this thing and watching it, timing it, marvelling at it. Everyone I show it to is similarly enchanted. Nice to have the various magnetic attachments, too. Trippy!

Verified purchase:  Yes • Condition: new • Sold by: seaside-sales

Worth the price

Wonderful toy! It spins much longer than a coin due to a great heft and the right proportions. The concave mirror stand also prolongs the spin and keeps it on the table. Good for teaching students about potential energy, gyroscopic precession, moment of inertia, etc.Read full review

Verified purchase:  Yes • Condition: pre-owned • Sold by: meoch_41

Makes science fun.

Amazing how a toy can also teach so much science.

Euler's Disk Review

This toy is very entertaining. It will spin for several minutes and amaze everyone. The holographic covers create a light show. It seems a bit pricey for being just a metal disk and mirror, but the entertainment value is worth it.Read full review

Verified purchase:  Yes • Condition: new • Sold by: -7SJnYGzTAa@Del...

Perfect gift for that youngster interested in science

This is a perfect gift for that youngster interested in science in your household. IT is amazing how long it takes for the disk to stop spinning. Magnetic stickers help visualize the motion. This is not a plastic toy that you will throw away after a few uses. The base is solid and the disk is heavy steel.

Much fun and educational too!Read full review

Verified purchase:  Yes • Condition: new • Sold by: -7SJnYGzTAa@Del...

Lots of fun

I heard about this from the Big Bang theory episode so I bought it and I love it it’s a lot of fun I recommend

Verified purchase:  Yes • Condition: new • Sold by: -7SJnYGzTAa@Del...

Not what it appeared to be. Deceptive!!!

The disk and the mirror plate were fine. It was missing a holographic triangle. All the holographic disks had creases in them. The box was real tired. This was definitely not new. It was USED.

Verified purchase:  Yes • Condition: pre-owned • Sold by: 65jeffyboy

Euler's Disk

Interesting and pretty well made version of an old item. Works as it should. Price is reasonable.

Verified purchase:  Yes • Condition: new • Sold by: 0Hls5v-0S5i@Del...

Lots of fun to watch. High quality disk...

Lots of fun to watch. High quality disk. Weighs a pound !

Verified purchase:  Yes • Condition: new • Sold by: ampco20