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DIY Energy Toy: Kinetic Energy Carousel . Adventures in Learning Want to make a fun DIY toy that moves? This kinetic carousel spins wildly and demonstrates potential and kinetic energy. Pin It Materials Pin It paper and carousel template (pdf)markersscissorsplastic lid – about 3″ diameter (peanut butter jar lids are perfect)wide rubber band (thin rubber bands won’t work!)

Accurate & Safe Table Saw Cuts Want more great tips? By subscribing to Woodsmith Tips, you'll get free tips in your email inbox every week! Share eTips with your friends How To Make A Light Up Shoebox Theater Got an extra shoebox lying around? Recycle it into an arctic-themed puppet theater with working lights! It’s a blast to make and perfect for impromptu imaginative play, even after the lights go out. Let’s get started… Note: Because of small parts, this is a project best suited for children 3 years and older. Older children and adults can prepare the box.

Amusement Park Physics You've bought your ticket and boarded the roller coaster. Now you're barreling down the track at 60 miles per hour, taking hairpin turns and completing death-defying loops. Your heart is in your throat and your stomach is somewhere near your shoes. The only thing separating you from total disaster is a safety harness...but are you really in danger? The designers of the roller coaster carefully crafted this thrilling ride to be just that, but you're actually in less danger than you think. Ornithopter Frame (Rubber Band Powered) by Bioluminescence A first pass attempt at printing the frame of a small, toy, rubber-band powered flapping flying machine. This small ornithopter is based on the tutorials I've seen for wooden ornithopters on Instructables, most particularly on the tutorial by Captain Molo

Oscillating Bird Science Toy For Kids I recently made a new oscillating bird design for a magazine, so I thought I’d share it here too. After finding this toy idea on the brilliant Science Toy Maker site a couple of years ago, I made this woodpecker. It’s based off of an old folk toy, and is a great way to teach kids about the science of potential energy. Simple Tip for Accurate Joinery Marks Learn a simple tip that will ensure you're joinery marks are as accurate as possible. What's the most accurate way to mark up a workpiece for joinery? No doubt there are many valid techniques out there but the one I recently saw period furnituremaker Philip C. Lowe using is worth writing about. Heck, I'd even say it's the best technique--in my humble opinion. Lowe often marks all of his joinery--tenon shoulders, mortise walls, etc, using a marking knife and combination square.

Simple Mechanics Cams The basic principle of the cam is to turn a circular motion into a linear one. This is referred to as reciprocating movement. In it's simplest form you turn a handle to make something move up and down. The cam-follower is connected to, and part off, a shaft known as the Push-Rod. The push-rod controls the direction of motion and transfers the cam's movement. Activity Guide: Pendulum Motion Swinging back and forth, the solo trapeze is a giant pendulum just like the one in a grandfather clock. The time it takes to swing forward, then back to where it started is called the period. Surprisingly, this time has very little to do with the height of the swing, or amplitude.

Crank Mechanism to Download and Make Become a Member for free access to this and other files on the site. See the Membership page for more details. Already a Member? Log in Here A working crank mechanism to download, print out and experiment with! MAGIC PROPELLER STICK I don't care if my ancestors were playing with this folk toy a century ago. It is as magical today. And it will be just as fascinating to future generations even if we harness nuclear fusion for power and interplanetary travel becomes routine. That's what "classic" means: timeless, immortal. If you haven't crossed paths with a magic propeller stick (also known as a whimmy-doodle in Appalachia), you're in for a treat.

The Secret to Perfect Mortise and Tenons It is a common misconception that fitting a joint means methodically paring the entire area until all the surfaces match perfectly, but in many cases, wood needs to be removed only from hidden surfaces to allow a joint to close completely. I call this technique undercutting. Do not mistake undercutting as taking the easy way out; undercutting is part of being a conscientious and concerned woodworker. Papercraft Automata Race Game littleBits Circuit Gather the following modules: 4 Wire (w1)1 Fork (w7)2 Button (i3)1 Sound Trigger (i20)1 Power (p1)1 Arduino (w6) On the Fork module, connect the Wire Out end to the first branch and the Wire In to a Button (i3) module Do the same thing on the second branch and connect a second wire to the remaining button.

Mad Scientist: Pendulums, Patterns from Sand The Mad Scientist In this experiment, we will be examining the pendulum. We will learn what a pendulum is, learn some words that will help us describe pendulums, and use a pendulum to draw patterns that are made out of sand.

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