Right Now in BrainStuff

Tune in to this episode of BrainStuff to learn more about blimps, from how they work to why they're a popular medium for advertisin

You asked:Can swimming pools stay empty during the winter season? --- Jay, Las Vegas, Nev.Marshall Brain Answered:As a general rule, it is a bad idea to leave a pool empty at any time, but especially in the winter. The problem is that if the ground g ...

You Asked:How do Betta fish mate if they always fight with each other? --- Sophie, Fort Myers, Fla.Marshall Brain Answers:Male Male Betta fish build bubble nests when they are ready to mate. You can see a bubble nest in this video (the bubbles are ma ...

You Asked:What is a bulletproof vest made out of? --- Abdul, Hyderabad, IndiaMarshall Brain Answers:For civilians, by far the most popular option for a bulletproof vest (aka body armor) is layered Kevlar. This material makes a thin, light vest that p ...

If you've ever put gas in a car, you've probably noticed how the gas pump shuts off when your tank is full. But how does it know to do that? Learn more about the clever mechanism that keeps your gas tank from overflowing in this episode of BrainStuff.

So you are saving money by keeping an older car, but it is starting to look a little rough around the edges. It could be having problems with dents, rust and scratches, or it could need a new paint job. We already covered scratch repair in Small dent ...

Nobel Prizes are highly prestigious, valuable awards that have been given out to visionaries and pioneers in select fields since 1901. Tune in to find out more about the Nobel Prize in this episode of BrainStuff.

The following video shows the famous "dead frog legs twitching when you salt them" demonstration: As you can see, the chef is preparing frog legs for dinner. He has skinned the frog legs and they are ready to be cooked. When he salts them, ...

If you go to New York City you will find street vendors that sell candied nuts in little paper bags.Around the holidays you may also have a friend who makes the same kind of candied nuts and gives them as gifts.We make candied walnuts here in the Bra ...

This is just an amazing video that demonstrates how a food stylist (aka a food makeup artist) makes a fast food burger look so delicious in a commercial:It really is an OMG! kind of video because many of these techniques are completely dishonest. For ...

With concern about global climate change and oil prices both peaking, people are looking for alternatives. Wind and solar are possibilities, but have problems with inconsistency. Traditional nuclear reactors are a proven technology but have perceptua ...

Have you ever thought about this - why don't people ride Despite the movie There has to be a reason why. And this video explains it:In part 1, at the 2:45 point, the video explains that there are seven traits that animals must have if they are going ...

You Asked:How does the Panama Canal's system of locks and dams work? --- Pam, Rex, Ga.Marshall Brain Answers:The This video has a nice description of the canal and its locks:You might think that the Pacific and Atlantic oceans would be at the same le ...

You Asked:How do your internal organs stay in place? --- David, Carletonville, South AfricaMarshall Brain Answers:It's a good question. For example, you can think of your small intestine as a super-flexible tube that is about 20 feet long. Your large ...

In this episode of BrainStuff, Marshall explains the physics behind satellites and orbits.

You Asked:What would happen if you took alcohol intravenously? --- Balaram, Bhubaneswar, IndiaMarshall Brain Answers:First let's state up front that injecting alcohol is a bad idea for reasons we will discuss below. Most people get their The thing ab ...

You Asked:Can you die from eating too many bananas? --- Yeng, Minneapolis, Minn.Marshall Brain Answers:Let's start with the basics. According to the Therefore, the place that people might get the idea that bananas could be toxic probably comes from t ...

You Asked:What is the difference between regular gasoline and natural gas? --- Sarah, St. Louis, Mo.Marshall Brain Answers:Let's start with their similarity. Both The difference is the number of atoms in each molecule. With natural gas, the molecule ...

You Asked:How does a door closer work? --- Sonny, Ventnor City, N.J.Marshall Brain Answers:There are two kinds of door closers you will typically see in the wild. The first looks like this and is typically used on screen doors and storm doors:Inside ...

You Asked:What would happen if the Earth stood still for one full minute? --- Balasubramaniam, Mumbai, IndiaMarshall Brain Answers:Right now the What this means is that everything on the earth is also traveling at 1,000 miles per hour. So if a giant ...