Archive for June, 2008

Wordless Wednesday – Keyboard Kitty

Keyboard kitty strikes again. (Anne Helmenstine)
Never AFK around keyboard kitty, unless you want members of your party in WoW to die horrible deaths.

June 25, 2008 at 1:38 pm 4 comments

Mad Scientist Potion

The Martini-Glass-of-Science and I spent some quality-time in the kitchen this morning making a video of a mad scientist potion. I also wrote up instructions for making the fizzing potion change color. Of course, if you really want to play mad scientist, add dry ice to the liquid.

June 24, 2008 at 5:57 pm Leave a comment

Smoke Bombs

Yes, of course you can make your own smoke bomb, but not everyone keeps potassium nitrate around the house, so you may want to visit a freworks store to get smoke bombs. They come in various shapes and sizes. The little smoke balls produce brightly colored smoke, but they only last a few seconds.

Pink smoke from a small smoke ball.

Bigger smoke balls will last a bit longer (about 30 seconds). Smoke grenades and large smoke bombs can last for a few minutes. Colored smoke is produced by heating and dispersing organic dye into the air, not usually because the ingredients actually burn a different color, so if you make your own colored smoke bombs, the key to success is forcing the colorants through an aperture.

June 23, 2008 at 1:20 pm 1 comment

Glowing Mentos Fountain Video


If you add Mentos candies to tonic water and illuminate the event with a black light, you’ll get a glowing blue fountain. My advice: use diet tonic water unless you want a sticky mess.

June 19, 2008 at 5:36 pm Leave a comment

Wordless Wednesday – Black Widow

Black Widow
Add to Technorati Favorites

June 18, 2008 at 4:07 pm 3 comments

Open a Bottle with a Butter Knife


You can open a beer, root beer, wine, or other glass bottle with a butter knife. All you have to do is hit it with a butter knife just under the lip of the bottle. The glass will shear cleanly, without sharp edges if you do it right. You can shear the neck of an empty glass bottle too (which is what Ry is doing here), but it works a lot better if you remove the label first (not necessary for a sealed bottle).

That’s also my first-ever YouTube video. I either need to figure out a way to mute my cellphone or camera or else strip the audio track (couldn’t find a converter for 3g2 to avi format). Suggestions are welcome.

June 17, 2008 at 1:29 pm Leave a comment

Wordless Wednesday – Make Green Fire

Green Fire (Eric Helmenstine)
Green Fire Instructions Add to Technorati Favorites

June 11, 2008 at 12:06 pm Leave a comment

Older Posts


RSS About Chemistry

  • This Day in Science History - June 2 - Nils Sefström
    June 2nd is Nils Gabriel Sefström's birthday. Sefström was the Swedish chemist who re-discovered the element vanadium in 1830. Vanadium was originally discovered by the Mexican mineralogist Andrés Manuel del Río ...Read Full Post
  • The Singing Spoon
    Do you know how to make an ordinary metal spoon sing or scream? The easiest way is ...Read Full Post
  • This Day in Science History - June 1 - Werner Forssmann
    June 1st marks the passing of Werner Forssmann. He was a German physician who first inserted a catheter into a person directly into the heart. He was also the first ...Read Full Post

Feeds


Follow

Get every new post delivered to your Inbox.