Under the right conditions, chocolate can indeed be deadly for dogs. Tune in to learn more about the compound in chocolate that makes it dangerous for dogs (and how much is too much) in this podcast from HowStuffWorks.com.

Seedless grapes are the most common kind on the market, but have you ever wondered how a grape can be seedless? How does it grow? Discover how seedless grapes accidentally came about -- and how they grow -- in this podcast from HowStuffWorks.com.

Self-driving cars seem like the stuff of science fiction, but they're closer to becoming reality than you might think. In this episode, Marshall breaks down the technology behind experimental self-driving cars.

In this episode of BrainStuff, Marshall Brain gives a detailed explanation of how British royal titles work.

The joker is an obscure and (according to some) useless addition to a deck of modern playing cards -- but it was originally a powerful card. Discover the history of the joker card and the modern card deck in this podcast from HowStuffWorks.com.

Dynamite is a type of chemical explosive. Discover how explosives from gasoline to dynamite work in this episode of BrainStuff.

Dry ice is different from regular ice in several ways. Find out what makes dry ice so unique -- and why it's so good for transporting perishables over long distances -- in this podcast from HowStuffWorks.com.

Created in the 1980s, the Avion is a car that can get more than 100 miles per gallon. In this episode, Marshall Brain talks about the factors that make the Avion so efficient -- and how the same techniques could be applied to production vehicles.

Jam, jelly, and preserves are all made from fruit mixed with sugar and pectin. Jell-O, on the other hand, is completely different. Take a look at our HowStuffWorks article to learn more.

The alt-f4 key combination is a faster way to close a window on your computer. Learn more about this and several other keyboard shortcuts in this podcast from HowStuffWorks.com.

When it comes to where you should sit in a movie theater to get the best experience, it's mostly a matter of preference. Except when it comes to sound. Find out why -- and where you should sit -- in this episode.

Nowadays bamboo is used to make all sorts of products, from flooring and furniture to bicycle frames. In this episode, Marshall explains why bamboo is becoming so popular -- and the advantages of using it to create consumer goods.

Internet cookies are information stored as text strings on a machine by a web server. Most commonly, cookies are used to store user IDs.

Bread is a technology for turning hard kernels into a soft foodstuff. Learn more about bread and yeast in this HowStuffWorks podcast.

If you've ever played a coin-operated pool table, then you've probably noticed that the table can sense the difference between the cue ball and the other balls in play. But how does this work? Tune in and find out in this podcast.

A zebra's stripes offer protection from predators in the form of camouflage -- and a way to identify individual members within the larger group. Learn more about zebra stripes in this episode.

Unfortunately lightsabers aren't real. The technique used to produce the lightsaber effect is simple, but tedious. Check out this HowStuffWorks podcast to learn more about the special effects behind lightsabers.

Different types of racing vehicles require different types of fuel. Check out this HowStuffWorks podcast to learn more about the advantages and drawbacks of each fuel type.

It's easy to jump on an exercise machine and watch the calorie meter -- but how accurate are these meters? Learn more about calorie meters in this HowStuffWorks podcast

Hot dogs were first created in Frankfurt, Germany. But what exactly are they made from? Check out this HowStuffWorks podcast to learn more about the mysterious ingredients of hot dogs.

A Boeing 747 uses approximately one galloon of fuel per second -- over the course of a ten hour flight, it might burn 36,00 galloons of fuel. How does this compare to a car? Check out this HowStuffWorks podcast to learn more about airplane mileage.

The clouds that some jets form on certain days are called condensation trails -- or contrails. Check out this HowStuffWorks podcast to learn more about condensation, weather and jets.

If you've spent much time looking up at the night sky, then you've probably seen some spectacular meteor showers. But how big do these things have to be make it through Earth's atmosphere and reach the ground? Tune in and find out.

Satellites are fascinating, but for most people they're somewhat mysterious. They float somewhere in space, invisible to the naked eye -- or are they? In this episode of BrainStuff, Marshall explains the physics behind satellites and orbits.

With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more.