Circular reasoning : Finding PI
January 28, 2023
In Blog
IntroductionMathematicians look at the world around them in terms of numbers and formulas, and now, you can discover the formula...
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Make some noise for the holidays
January 7, 2023
In Blog
Build a Disk Siren Introduction If you live in an urban area, you probably hear them almost every day: sirens. Police cars,...
Is It Ripe Yet? Build a Circuit to Detect Ripe Produce
January 7, 2023
In Blog
Abstract When you go to the supermarket, how do you pick out ripe fruits and vegetables? You might look at their...
DIY Christmas gift idea: LED Dance glove:e-textile
December 17, 2022
In Blog
Abstract Have you ever seen clothing with built-in lights? This might sound like something out of a science-fiction movie, but electronic textiles (or e-textiles...
Water to fuel to water: the fuel cycle of the future
November 26, 2022
In Blog
Abstract Solar cells are popping up on rooftops everywhere these days and are a model for clean, renewable energy. Did you...
How Strong Is Your Hair?
November 19, 2022
In Blog
Introduction Have you ever wondered how strong hair is? When we talk about our hair we usually discuss color, length or...
Password Security: How Easily Can Your Password Be Hacked?
November 5, 2022
In Blog
We use passwords every day for our email and other computer accounts. How secure is the password that you use?...
How to build a telescope
October 22, 2022
In Blog
The type of telescope you will build in this activity is also called a monocular or a spyglass. Materials Double convex...
Which Filtration Material Leads to the Best Drinking Water?
October 1, 2022
In Blog
Abstract Do you filter your tap water before drinking? Many commercials claim these filters make your drinking water cleaner and safer....
How to grow plants in space
September 17, 2022
In Blog
Abstract Can humans grow food in space? Can we grow plants on the Moon or on a space station? This is...
What Materials Can Block a Wi-Fi Signal?
September 5, 2022
In Blog
Abstract Have you ever suffered from poor Wi-Fi reception for your smartphone, tablet, or laptop? Certain materials can actually block a...
Rocketology: Baking Soda + Vinegar = Lift Off!
September 5, 2022
In Blog
Abstract Watching a spacecraft launch is an amazing experience. It is thrilling to see it lift off and escape Earth's gravity....
Lift Loads using Liquids
August 20, 2022
In Blog
Background If you have ever used a wheelbarrow, you know it can help you lift heavy objects; lifting the handles of...
The Chemistry of Clean: Make Your Own Soap to Study Soap Synthesis
August 8, 2022
In Blog
Abstract Soap comes in many varieties and forms—from bars to bottles to boxes. The uses for soaps are just as expansive—from...
Measuring the Speed of light with a Microwave Oven
July 23, 2022
In Blog
Abstract Did you know that you can measure the speed of light using a microwave oven, some egg white, and a...