If you're concerned that these Uranium Glass Marbles are simply standard marbles with phosphorescent material or somesuch, worry not! Amazon assures the consumer that they'll get a geiger counter going.
... A Ludlum Model 44-9 Geiger-Mueller probe connected to a Ludlum Model 3 when in direct contact will read several hundred cpm.
That said, a lot of the reviewers talk of using blacklight to see them, which does suggest an absolute minimum of radioactive material augmented by fluorescent paint. There's six in each pack of 5/8" marbles.
Who isn’t fascinated by the idea of perpetual motion? Though I know it’s impossible, I’m always on the lookout for things that seem to come close. Like most tops, Limbo is spun from your fingertips – but the hidden USB recharge-able gyroscope is what keeps it going. LIMBO just took the Guinness World Record title […]
In the below video, Redondo Beach police officer Kyle Lofstrom pops the weasel and police dog Ammo responds accordingly. A post shared by Redondo Beach K9 Team (@redondobeachk9team) on Aug 9, 2018 at 5:28pm PDT “I can’t tell if this means he likes his new toy or hates it,” Lofstrom posted on the K9 team’s […]
YouTuber IAA015 likes to demonstrate fun decorative gadgets for the home and office, like this nicely designed Stirling engine that can reach speeds of over 2,000 revolutions per minute.
It might still be September, but the holiday season will be here before you know it, which means now is the time to think about where you want to vacation to—and what to do once you get there. To this end, we’ve scoured the Web and tracked down a number of travel hacking ebooks, gadgets, […]
The human eye is a beautiful, incredible thing, but it’s far from perfect, especially when it comes to examining objects up close. Capable of magnifying objects up to 1,000 times, this portable microscope camera lets you see wonders hidden to your regular vision, and it’s on sale today for $38.99. Don’t let its compact size fool […]
There’s no shortage of apps available for your Mac, and, while it’s great to have options, this overabundance makes it difficult to find the apps worth installing on your computer. Thankfully, there’s the Pay What You Want: The Ultimate Mac Bundle ft. 2Do to simplify the process, which boasts 10 of the best Mac apps out […]