The 12 Angry Men blog has a good little rant about the death of the chemistry set, blaming it on lawyers, the war on terror, and the war on some drugs (specifically, the war on meth). These sets were key to interesting untold millions of kids in science and the scientific method.
Today however, the Chemistry Set is toast. Current instantiations are embarrassing. There are no chemicals except those which react at low energy to produce color changes. No glass tubes or beakers, certainly no Bunsen burners or alcohol burners (remember the clear blue flames when the alcohol spilled out over the table). Today’s sets cover perfume mixing and creation of luminol (the ‘CSI effect’ I suppose).
In some States, you need a FBI criminal background check to purchase chemicals. Some metals, like lithium, red phosphorus, sodium and potassium, are almost impossible to purchase in elemental form. This is thanks to their use in manufacturing methamphetamine. Sulphur and potassium nitrate, both useful chemicals, are being classified as class C fireworks (here is a good precursor link). Mail order suppliers of science products are raided. Many over-the-counter compounds now require what is essentially a (poor) background check. Even fertilizer (ammonium nitrate) is under intense scrutiny. Where does this trend end? Ten years from now, will the list include table salt, seawater and natural gas – precursors to many industrical chemicals?
(Photo credit: Ancient Chemistry Set, a Creative Commons Attribution-License photo from Vortistic's Flickr stream)
Where are our petabyte drives? Brian Hayes takes us through the reasons storage is “stuck” in the low terabytes. The tl;dr is that we got such exceptional capacity growth in the late 90s and early 00s we don’t need much more right now, so the focus since then has been on SSDs, networking, interfaces, etc, […]
Amélie Lamont, a former staffer at website-hosting startup Squarespace, writes that she often found herself disregarded and disrespected by her colleagues. One comment in particular, though, set her reeling — and came to exemplify her experiences there.
In this episode of the Flash Forward podcast we travel to a future where humans have decided to eradicate the most dangerous animal on the planet: mosquitos. How would we do it? Is it even possible? And what are the consequences? Flash Forward: RSS | iTunes | Twitter | Facebook | Web | Patreon We […]
Isn’t it about time to stretch what your Mac can do? I mean, you’ve got plenty of great programs now…but don’t you think you could use some new tools to get your creative, analytical and organizational juices really flowing? It’s spring, so we cleaned up a whole bunch of super-cool apps lying around and packaged […]
In the world of app development, there’s no greater arena to find success than with Android users. About 80% of the smartphones in use today worldwide operate on the Android operating system, so if you build a great app that Android users love, you’re an international rock star. You’ll be able to make sure your […]
Unless you’re a programmer or webmaster, the term SQL probably doesn’t mean much to you. But for those looking to understand more about how and why the web works the way that it does, know this – SQL and its process of managing and presenting large data sets is everywhere…and it’s the most in-demand programming […]