Showing posts with label mishaps. Show all posts
Showing posts with label mishaps. Show all posts

Monday, June 25, 2007

Noooooooooo! (Awesomeness Delayed for CERN)

Via Scientific American, it seems the opening of the Large Hadron Collider (the next particle accelerator to end all particle accelerators) has been officially delayed until May 2008. The breakdown of a superconducting magnet under a high-pressure test last March and a number of other minor delays have ruled out the test run planned for this December.

On the bright side, this gives all us would-be basement particle physicists a chance to catch up, right? I don't know about you, but I'm this close to finding the Higgs boson using a washing machine and an old TV set.

Thursday, February 1, 2007

Ecologically Approved

Engineers in Northern Wales wielded the Power of Physics and the Power of Chemistry to create a new salt mixture for deicing their roads. They added molasses to the salt so the salt would stick to the roads and not to cars, improving traction and limiting corrosion. However, in creating this safe-for-cars road salt, they forgot to wield the Power of Biology.

They forgot about the sheep.

Wednesday, January 24, 2007

Just so wrong...


There are so many things wrong with this experiment. I'm assuming he is performing the "Methanol Torch" , where you fill a bottle of that shape with methanol vapor, bring a lit match to the top of the bottle and, after a quick flare, the flame flutter as it uses up the fuel in the neck and then pulls more from the body.

  • A glass bottle, we used old water cooler jugs.
  • He put whatever it was he was using to light it so far down the neck that the force of that initial burst was more focused into the bottle instead of upward (this is just assumption).
  • No safety glasses/goggles in evidence.
  • The full bottle of solvent (I'm assuming it was the methanol) really close to the firey experiment.
  • Letting the flame just burn after the explosion.
  • That godawful labcoat.

Any others you see?

Friday, January 19, 2007

Fire in the hole!

Many moons ago, when I was a young chemistry graduate student, I participated in an Outreach program that had university students (grad and undergrad) visiting local schools and performing chemistry demonstrations. Many of the experiments were of the explosive variety to elicit “oohs” and “ahhs” from the audience.

Typically, there were two or three of us doing the demos, as going it alone was frowned upon, but sometimes I would have perform solo, especially when the undergrads had gone home for the summer but the local schools were still in session. One such time was for a class of sixth graders at a local middle school.

I was performing one of our more popular experiments, the hydrogen balloon. We’d have two balloons, one filled with helium the other with hydrogen. Attaching a match to the end of a long metal stick, first we’d put the lit match to the helium balloon. It would pop, but nothing else. Next, we’d turn out the lights and give the hydrogen the same treatment, resulting in a pretty spectacular fireball (well for indoors at any rate), and the kids would clap and shout. My shtick was to have the kids say “Oh the humanity!” as I put the match to the balloon (then explain a bit about the Hindenburg disaster). Usually, I got a few laughs and the kids loved the explosion, but this time things didn’t go quite the way I planned.

I got through the helium balloon part just fine, but when I went to light the hydrogen balloon, there was a small pin-hole that caused the balloon to shoot a jet of flame instead of exploding in a fireball. Immediately, I pulled the stick away, but unbeknownst to me, the jet action had wrapped the balloon’s string around the stick. Instead of moving away from the balloon, I was actually pulling it toward me. Thankfully, I was wearing a short-sleeved t-shirt so the flames just singed the hair off my forearm and were extinguished quickly. After the flames were out, I heard the class cheering wildly and chants of “Do it again!”

Years later, when asked to participate in a stunt which called for me to be purposely set on fire by some fire-eating friends, this little event allowed me to truthfully reply, “That’s alright, I’ve been on fire in front of an audience before”.

(image via wikipedia)