Archive for April, 2009
These two videos demonstrate a phenomenon called the “Floating Water Bridge”. See also: High Voltage Water bridges The bridge can stretch up to about an inch. To create the bridge you start with two containers of deionized water. You add electrodes (visible in the second video) and apply 10,000 to 15,000 volts DC between the [...]
If you are looking for a cheap source of calories, a baked potato is one of the least expensive if you buy the potatoes on sale. Here’s how you bake a potato in a microwave: Here’s how to cook them in a conventional oven: Note that when he says “190 to 200 degrees” he is [...]
Good question – How much fuel does the sun burn per second?
by Marshall Brain | April 29, 2009
The sun shines every day and we don’t really think about it. But the amount of energy that the sun produces is astounding. How much energy is the sun producing? On earth we see about 1 kilowatt per square meter of sunshine. In space (because there is no atmosphere) it is more like 2 kilowatts [...]
The worm within – “I had finished doing what we all do at the toilet, stood, and casually, almost like a cat, turned around to look down and make sure. This time, looking down, something caught my attention. Among the customary contents, there was a bright, clean, white thing down there…” Chemical ‘caterpillar’ points to [...]
There are many kinds of motion sensors, from active to passive systems. Get the scoop on how myriad motion sensing systems work in this podcast from HowStuffWorks.com.
Some theorists suggest that single-sex classrooms create more effective learning environments, while others disagree. Tune in as Molly and Cristen weigh the arguments for and against gender-segregated classrooms in this podcast from HowStuffWorks.com.
We might not all grow up to be astronauts, but there are lots of everyday technologies that we can thank NASA for. Find out which technologies were space-tested before they landed on Earth in this podcast from HowStuffWorks.com.
It’s hard to believe that anyone would trade the thriving island of Manhattan for a spice, but history is full of surprises. Find out why — and how — the Dutch traded Manhattan for nutmeg in this podcast from HowStuffWorks.com.
You Asked: How do you get a book published? Adrienne, Hampton, Va. Marshall Answered: Today there are several ways to get a book published: 1) The traditional way is to send the book to a publisher and get it accepted. The publisher then edits and publishes the book. You get a royalty check. 2) There [...]
You Asked: How do septic tanks work? — Jerry, Cottonwood, Calif. Marshall Answered: You flush the toilet. A bunch of liquid and solid waste heads toward the septic tank. The tank might hold 1,000 gallons. Some of the solid waste floats to the top. The rest sinks to the bottom. In the middle, the liquid [...]
Recent Postings by Category
BrainStuff
- Thank You and Best Wishes to Marshall Brain
- Contest – Design a $300 house and win $25,000
- How the Philtrum works – the place under your nose where your face comes together
The Coolest Stuff on the Planet
- Have a Coke and a Smile
- The Latest in Frugal Lodging: Camping in Somebody Else’s Backyard
- The Painted Beauties of Bucovina
Keep Asking
- Why can a 5 foot 8 inch man dunk a basketball on a 10 foot rim while some people of taller stature can’t?
- What happens to our sun once it runs out of fuel?
- How do we know the age of the universe?
Stuff Mom Never Told You
- Who invented the Christmas card?
- How the Kinsey Report Fueled Whiskey Sales
- How to Get Your Wedding Announcement into The New York Times
Stuff to Blow Your Mind
- Space Music: DJ Food and ‘The Search Engine’
- Stuff to Blow Your Mind: Hug it Out
- Space Music: Jay-Z and Beyoncé to Film Music Video in Orbit
Stuff You Should Know
- The Southern Death Cult, the Maya and Georgia
- Deformed Baby Spider Brains
- Amazing Medical Conditions: Maple Syrup Urine Disorder
The Stuff of Genius
CarStuff
- Why is NASA studying car safety?
- Tips for in-car Navigation Systems
- Tips for Using Bluetooth in the Car
How-to Stuff
- How to Swim with Dolphins (When Deep Water Terrifies You)
- How to Cure a Homemade Cookie Craving Without Turning on the Oven
- How to Know When It’s Time for a New Pet
PopStuff
- PopStuff Show Notes: Episode 36: Now Available in 3-D
- PopStuff Show Notes: Episode 35: Let’s do brunch!
- PopStuff Show Notes: Episode 34: Play it again, Sam
Stuff They Don't Want You To Know
Stuff to Change the World
- Who will own the Arctic?
- Obesity: The New Global Crisis
- Bill Gates Makes For A Pretty Decent Cartoon
Stuff You Missed in History Class
- Butch Cassidy: Should we read between the lines?
- Are we rooting for D.B. Cooper?
- Party Time: A Look at Unconventional Politics

