Boing Boing 

The geometry of fireworks

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“Enjoy the parabolic envelopes that form while those bright, sparkling, parabolic curves are etched into the sky tonight.” —Visualizing Math.

July 4: Barbara Kruger

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Home Bartending: Celebrate July 4th with these 1776-era cocktails

rum-brandy-punch

Although the word "cocktail" wasn't coined until the 1800s, mixed drinks were all the rage when America got its independence. Many were made with rum or whiskey, and punch was the term du jour. Both refreshing and timeless, why not toast the weekend with these 3 smashing cocktails of yesteryear?

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WATCH: Patriotic fireworks safety supercut

The U.S. Consumer Product Safety Commission just released a very dry safety video about not blowing yourself up with fireworks for the holidays, so we made a peppier patriotic supercut.

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Redneck Fireworks: DIY launcher shoots 8,500 bottle rockets

A 4th-of-July-themed 2007 vintage YouTube of who knows whom, doing something crazy in lord knows where.

“These crazy rednecks start drinking beer, then they decide to try and make a rocket launcher. They find an old gate and rig a fuse then proceed to load it with 8,500 bottle rockets while drinking beer and smoking cigarettes. This contraption makes an awesome firestorm.”

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[YouTube via Reddit]

Dogs and cats hate holiday fireworks. Here are 3 tips to protect your pet on July 4th.

Image: Shutterstock


Image: Shutterstock

Fireworks displays are fun for most humans, but pretty terrifying for pets.

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Fireworks Fail: the ultimate video compilation

[Video Link] Compiled by WorldWideInterweb (via OneCoolThingADay).

Reagan on a Velociraptor

"Ronald Reagan Riding a Velociraptor," by *SharpWriter on DeviantArt. You can buy prints of this image, and other awesomely weird works by SharpWriter, at his Etsy store.

FDR Transformer, Teddy Roosevelt Vs. Bigfoot, Abe Lincoln Riding a Grizzly, John F. Kennedy Alien Hunter on a Unicorn, George Washington Zombie Hunter—hoo-wee, there's a lot to love. (thanks, Dingus!)

Happy 4th: Joe Sabia plays Horowitz, on piano

[YouTube link].

Joe collaborates with us on our in-flight television channel on Virgin America airlines, and runs the music experiment project CDZA.

Where the colors of fireworks come from

The Works is a kids science and tech museum in Bloomington, Minnesota, just a few miles from where I live in Minneapolis. Today, they had this cool chart up on their Facebook page, explaining which chemicals produce the colors you see in fireworks. How cool is that? Tomorrow, when the rockets glare red, you'll know that's actually strontium carbonate.

More about The Works

Thanks, Nicole Wieler!