Sometime in the late 1980s or early 1990s, my mom bought me a chemistry set. I was in grade school, but I remember thinking it was pretty cool. I also remember being slightly disappointed (particularly after being told that I could only play with it in the garage) that there was nothing in there that could actually blow up.
Many of us are nostalgic for the lost golden era of certifiably dangerous children's chemistry sets. Even if we weren't alive when that era occurred, we're still, sort of, vicariously nostalgic. At the BBC, Alex Hudson has a story about what was really in those misty colored chemistry sets that have lodged themselves into our cultural memory. Along the way, we learn that their demise was only partly to do with unfounded safety fears—some of the fears were founded, for instance, and in other cases, money and seemingly unrelated legal issues got in the way of fun.
By the 1920s and 30s children had access to substances which would raise eyebrows in today's more safety-conscious times. There were toxic ingredients in pesticides, as well as chemicals now used in bombs or considered likely to increase the risk of cancer. And most parents will not need to be told of the dangers of the sodium cyanide found in the interwar kits or the uranium dust present in the "nuclear" kits of the 1950s.
Most will know cyanide as a deadly poison, but one of its main applications is in gold mining. It can make gold dissolve into water.
...Used often to test the presence of starch, the iodine solution once seen in kits is now regulated as a list I chemical in the US because of its use in the manufacture of methamphetamine. It can also be lethal if more than 2g of pure iodine is consumed.
Read the rest of this story at the BBC
Elenco’s Night ‘n Day Mechanical Globe uses a system of translucent, exposed gears to rotate an internally illuminated globe that displays the seasonally adjusted, real-time night/day terminator as it spins.
KSU plant biochemical geneticist Raj Nagarajan describes the properties of Thaumatin, Monellin and Brazzein, all found in west African plants that are generally considered safe for consumption; each is a protein, and they are, respectively, 1,000x, 2000x, and 3000x sweeter than sugar.
The amazing suckers on octopus arms aren’t just for sucking. They also are used to smell and taste. To deal with all that sensory input, the vast majority of an octopus’s brain cells are in its eight arms! “It’s more efficient to put the nervous cells in the arm,” neurobiologist Binyamin Hochner, of the Hebrew […]
Having a luxurious bed isn’t just a fairy tale from a catalog; it is a real, affordable possibility with offerings like this Olive+Owen bedroom set. If you’re thinking of doing some “spring cleaning”, this bed set is an easy way to completely upgrade your room in one purchase.This 20-piece collection has all of the expected slumberland elements, […]
Python is immensely popular in the data science world for the same reason it is in most other areas of computing—it has highly readable syntax and is suitable for anything from short scripts to massive web services. One of its most exciting, newest applications, however, is in machine learning. You can dive into this booming […]
Learning new skills is a great way to improve your resume and stand out from other candidates. Especially in a workforce in which many job-seekers have a wide variety of qualifications. With lifetime access to Virtual Training Company, you won’t have to choose a specific focus. You can pick up new expertise whenever you deem it […]