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« how many horses under the hood..? none - i've got cows. | Main | gaga for science »


Whoosh ~ over the top of my head most of that went, except the link to Eternalist. Do you use it? And...does it work as well as they say it does?

If you're worried about nanotechnology that goes on your face, then the titanium dioxide used in transparent sunscreen is going to be more of a problem for you -- it's widely used, and while there hasn't been all that much research gone into its potential effects, IARC did flag it as a possible cancer risk.

Good point Will - yes, we've been using TiO2 on our skins for a pretty long time without any study of what it does. There is a major change in nanotoxicology happening. We used to believe that a material that was safe in bulk was safe at any size; however, now we know that this is not necessarily the case. When you make materials small, they can get into things (cells, lung pathways) they aren't supposed to get in, or do things like foul up your kidneys.
I guess the point I was trying to make was that I understand why there is nano titania in sunscreens, but I spent a lot of time going through websites where they tout nanotechnology, but never explain what is nano and what the nano-object does. While that might be a little disturbing for putting it in my car, it makes me a little nervous when my favorite moisturizer has a 'now with nanoparticles' banner on its box with no explanation of what they added/changed or had to disclose.
My thesis advisor used to tell me about using benzene to clean up much the same way you or I would use a bucket of water and a dishtowel. Of course, now we know benzene is not something you want on your skin. I bet there are more things we do now without thinking that we will eventually find out weren't very good for us.

Clance' - nope, haven't tried the product and probably won't. The best thing I can probably do for my skin is make sure I take appropriate precautions in the Sun! No more going to the track without a big ole hat for me.

Wow. Never mind the technology, just the lack of proper grammar would make me nervous about trying Eternalist. Makes you wonder what else they didn't spend money on.

OK, ending a sentence with a preposition is a major grammar foul, but I'm not the one trying to market cosmetics on the internet. :)

This post is different from what I read on most blog. And it have so many valuable things to learn.

Thanks for sharing knowledge..

The explosion characteristics of nanoparticles is also unknown. There has been very little research on dust explosion testing for these materials, meaning the manufacturer's have little idea whether they can produce them safely. It make take a dust explosion incident to wake everybody up to potential danger.

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    Physics Cocktails

    • Heavy G
      The perfect pick-me-up when gravity gets you down.
      2 oz Tequila
      2 oz Triple sec
      2 oz Rose's sweetened lime juice
      7-Up or Sprite
      Mix tequila, triple sec and lime juice in a shaker and pour into a margarita glass. (Salted rim and ice are optional.) Top off with 7-Up/Sprite and let the weight of the world lift off your shoulders.
    • Listening to the Drums of Feynman
      The perfect nightcap after a long day struggling with QED equations.
      1 oz dark rum
      1/2 oz light rum
      1 oz Tia Maria
      2 oz light cream
      Crushed ice
      1/8 tsp ground nutmeg
      In a shaker half-filled with ice, combine the dark and light rum, Tia Maria, and cream. Shake well. Strain into an old fashioned glass almost filled with crushed ice. Dust with the nutmeg, and serve. Bongos optional.
    • Combustible Edison
      Electrify your friends with amazing pyrotechnics!
      2 oz brandy
      1 oz Campari
      1 oz fresh lemon juice
      Combine Campari and lemon juice in shaker filled with cracked ice. Shake and strain into chilled cocktail glass. Heat brandy in chafing dish, then ignite and pour into glass. Cocktail Go BOOM! Plus, Fire = Pretty!
    • Hiroshima Bomber
      Dr. Strangelove's drink of choice.
      3/4 Triple sec
      1/4 oz Bailey's Irish Cream
      2-3 drops Grenadine
      Fill shot glass 3/4 with Triple Sec. Layer Bailey's on top. Drop Grenadine in center of shot; it should billow up like a mushroom cloud. Remember to "duck and cover."
    • Mad Scientist
      Any mad scientist will tell you that flames make drinking more fun. What good is science if no one gets hurt?
      1 oz Midori melon liqueur
      1-1/2 oz sour mix
      1 splash soda water
      151 proof rum
      Mix melon liqueur, sour mix and soda water with ice in shaker. Shake and strain into martini glass. Top with rum and ignite. Try to take over the world.
    • Laser Beam
      Warning: may result in amplified stimulated emission.
      1 oz Southern Comfort
      1/2 oz Amaretto
      1/2 oz sloe gin
      1/2 oz vodka
      1/2 oz Triple sec
      7 oz orange juice
      Combine all liquor in a full glass of ice. Shake well. Garnish with orange and cherry. Serve to attractive target of choice.
    • Quantum Theory
      Guaranteed to collapse your wave function:
      3/4 oz Rum
      1/2 oz Strega
      1/4 oz Grand Marnier
      2 oz Pineapple juice
      Fill with Sweet and sour
      Pour rum, strega and Grand Marnier into a collins glass. Add pineapple and fill with sweet and sour. Sip until all the day's super-positioned states disappear.
    • The Black Hole
      So called because after one of these, you have already passed the event horizon of inebriation.
      1 oz. Kahlua
      1 oz. vodka
      .5 oz. Cointreau or Triple Sec
      .5 oz. dark rum
      .5 oz. Amaretto
      Pour into an old-fashioned glass over (scant) ice. Stir gently. Watch time slow.