Anna Petty

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How I Turned Car Batteries Into A Welder [Video]

Makeshift tools for the post-apocalypse<p>If we’re lucky enough to survive Armageddon, our precious electrical grids won’t. But we needn’t pine for energy as we build a new civilization from the scraps of the old one. Inside every abandoned car is a lead-acid battery just waiting to power a makeshift …

DIY

Funniest Game Show Answers of All Time

Mice With 'Mohawks' May Yield Key Clues About Autism

It's not every day you see a mouse with a mohawk. But that's what researchers saw while studying mice that had a genetic mutation linked to autism.<p>The mohawks that the mice were sporting actually resulted from their "over-grooming" behavior, repeatedly licking each other's hair in the same …

New Study Strengthens Gut Bacteria-Autism Link

New research adds more strength to the potential link between gut bacteria and autism.<p>In a small study, researchers from Arizona State University found evidence that gut bacteria may differ between children with and without autism.<p>Specifically, the researchers found that the fecal concentrations of …

Man Leaves Best Voicemail Ever After Witnessing Car Accident

When this guy calls his boss to tell him he's running a little late, he witnesses a car accident and begins the best play-by-play commentary you'll …

Driverless Cars

What Happens To Your Body When You Get Drunk And Stoned At The Same Time?

The science of the spins<p>The intoxicating effects of alcohol and of marijuana have been widely studied, but their combined effect—getting "cross-faded"—is woefully underexplored scientific territory. Here's a look at what we know about how pot and booze together affect the brain.<p>First, the basics: …

Cannabis

Mapping Emotions On The Body: Love Makes Us Warm All Over

Close your eyes and imagine the last time you fell in love. Maybe you were walking next to your sweetheart in a park or staring into each other's eyes over a latte.<p>Where did you feel the love? Perhaps you got butterflies in your stomach or your heart raced with excitement.<p>When a team of scientists …

One Family's Aging Process Documented Across Two Decades

In 1991, photographer Zed Nelson asked his friend and his friend's pregnant wife if he could document the family in a portrait. The couple agreed and, since then, Nelson has continued to photograph the trio on the same day each year, in front of the same backdrop and with the same lighting in this …

Aging

One Step Closer to Hover Boards: Three-Dimensional Mid-Air Acoustic Manipulation | Colossal

<p>While we’ve seen examples of objects suspended mid-air using quantum levitation and acoustic levitation, a team of three Japanese engineers from The …

12 Signs You May Have an Anxiety Disorder

Everyone gets nervous or anxious from time to time—when speaking in public, for instance, or when going through financial difficulty. For some …

Your 3-Minute Mood Booster

Wonder why? It’s a chain reaction: Nostalgia spurs a feeling of social connectedness. That in turn raises self-esteem, which makes you more optimistic, says study author Wing-Yee Cheung, Ph.D.<p>Boost your mood in 3 minutes: Crank up a song from the first concert you attended with your friends, or …