Slashdot Mirror

← Back to Stories (view on slashdot.org)

The Delights of Chemistry

Posted by Hemos on from the ka-FOOM dept.

Dan Ormsby writes: "No news on this site, just great photos of chemical phenomena along with instructions on how to perform them yourself. Don't try this at home!"

5 of 133 comments (clear)

  1. Google's cached site by At000miC · · Score: 1, Informative

    http://www.google.com/search?
    hl=en&safe=off&q= cache:U69NL26L50Y:www.chem.leeds. ac.uk/delights/+&spell=1

    1. Re:Google's cached site by Anomymous+Coward · · Score: 1, Informative

      this has been proposed before, and they have a good reason for NOT caching news stories: it takes control of the story out of the hands of the original poster, making it unable for the person to shut down their site if they want privacy, and making slashdot responsible for posting potentially illegal material (remember all the DeCSS things linked to in the past?) ... they cant cache it, but they should at least warn the webmasters before posting it. Typically /.'ing is just a misconfigured (max processes = 15 by default, right?) apache server, especially in a university setting.

  2. The simple ones.. by GoNINzo · · Score: 4, Informative
    Most of these are somewhat complex and some require like +3% solutions of acids/bases, which are difficult to get at best. In fact, some of these chemicals are 'call in the EPA if there is a spill'. But there are a lot of easy ones with materials that easy to get. Maybe they'll tune it a bit so they can list the ones you can do at home. I don't think I'm allowed to own 100% Hydrogen perxoide. `8r)

    As far as explosives go, lots of cool things to do with chemicals like magnesium and nitrates. Just might have to search a bit harder. `8r) But hell, just making hydrogen is fun, from electricity and water.

    --
    Gonzo Granzeau
    "Nothing the god of biomechanics wouldn't let you into heaven for.." -Roy Batty
  3. Physics Demos by dragons_flight · · Score: 5, Informative

    If you liked that, you might also want to check out the physics demonstration archive at my old school (UMD).

    IIRC It's the largest in the country.

    Oh yeah, the Question of the Week is also very good.

  4. Re:Great ways to get kids into science by RevRigel · · Score: 2, Informative

    That's a commonly held misconception that's almost an outright urban (chemical) myth. I don't know about how many people die because of it, but it doesn't produce Cl2 gas. It produces Hydrazine (N2H2, or H-N=N-H), which mainly used in the space program for short burst maneuvering thrusters on spacecraft, and has been used since the very first US launches at Vandenburg.

    It's bad enough stuff that if you're able to smell it, you've already got brain damage, so there aren't too many people who know what it smells like. If I recall, there was a guy at Vandenburg whose job was to sniff for Hydrazine, but that was a classified project and they could get away with that kind of crap.