All across the world people need to get from one place to another. And sometimes to get to that other place we need bridges. Here are eight bridges that are extraordinary in their own way, from standing the test of time to handling...

The chemistry behind film photography is pretty fascinating. How do film cameras help us turn light into a physical image?

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Stem cells are widely believed to hold great promise in medical research because of their ability to transform into all sorts of other cell types, and scientists can grow it in living mice.

Joel Jackson wants to reimagine transportation around the needs of the African consumer. He's designed an SuV that's rugged enough for long stretches of uneven terrain and affordable enough to be within reach of those who need it most....

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences.

Around the world, black girls are being pushed out of schools because of policies that target them for...

What's in macaroni salad? Break down the pasta, mayonnaise, vinegar, mustard, vegetables, etc., and you're left with a bunch of molecules. Josh Kurz uses a delicious recipe to exemplify three types of mixtures (solution, colloid and...

Is Glass a Liquid?

Howcast - Check out this Portal 2 walkthrough and beat Chapter 1 - Part 1: Introduction with this online demo.

Howcast - Learn motorcycle suspension basics in this Howcast motorcycle video with expert Kenyon Kluge.

Howcast - Learn how to use the B pedal on a pedal steel guitar in this Howcast video.

Howcast - Learn how to play a hammer-on from country guitar player Boo Reiners in this Howcast video.

Nothing ruins a ride like a creaky bike. Especially when that creak is of unknown origin. If your noisy ride hasn't scared off all your friends, have one at the ready. With their help and the help of this hack, you might find some peace...

Want something nobody else has? Yep, nobody. Want a ride quality unlike anything else available? Correct, like nothing else. Good? Depends—you feeling lucky?

The BMC Fourstroke is an ultra-modern race-focused beast with just enough muscle to handle today’s rowdy race courses without sacrificing a single ounce of get-up-and-go. Find the full review at bikemag.com

The SB130 is built to take a high-speed beating from riders who prefer to dish out their abuse with precision and style, but who are ready to adapt to this bike’s long cockpit and wheelbase.

The newest version of the Juliana Roubion takes the model’s boundary-pushing performance to the next level. Key developments include a lower-link mounted shock, similar to the one found on the Nomad and V-10, which the company claims...

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Want the most progressive, advanced 29er available? The Yeti SB150 should be at the top of your list.

The Liv Intrigue surprised testers with its versatility, earning high marks on both our cross country and gravity test tracks. Giant’s buttery maestro platform, paired with blingy new DVO suspension helped it shine. With a full range of...

The newest version of the Santa Cruz Bronson takes the model’s boundary-pushing performance to the next level. Key developments include a lower-link mounted shock, similar to the one found on the Nomad and V-10, which the company claims...

Although early scientists knew heredity came from within organisms, they couldn't initially identify the genetic material until pivotal experiments like those of Griffith and later Hershey and Chase. In 1952, Hershey and Chase used...

The blue car is driving too fast and crashes into a traffic light. It needs Dr. McWheelie's help. After repairs, the car is good as new—be careful on the road, blue car!

A blue car breaks down near Dr. McWheelie's garage due to road holes. While Dr. McWheelie and Robot Handy fix the car, special vehicles repair the road and Handy places a caution sign.