How to Make a Hygrometer
Mount a wire on a board which is used for a base and should be 3/8 by 4 by 8 in., as shown in the sketch. A piece of catgut—a string used on a violin will do—is suspended from the…
Category Easy Science Projects
How to Make an Induction Coil
A small shocking coil, suitable for medical purposes, may be constructed of materials found in nearly every amateur mechanic’s collection of odds and ends. The core, A, Fig. 1, is a piece of round soft iron rod about 1/4 in.…
Construction of Single Phase Induction Motor
Construction of Single Phase Induction Motor – Excerpt from the book: THE BOY MECHANIC VOLUME I 700 THINGS FOR BOYS TO DO WITH 800 ILLUSTRATIONS 1913, BY H. H. WINDSOR CHICAGO POPULAR MECHANICS CO. PUBLISHERS – – – The following…
Wooden Flat Bottom Boat – How to Build a Wooden Flat Bottom Boat
A flat bottom boat is easy to make and is one of the safest boats, as it is not readily overturned. It has the advantage of being rowed from either end, and has plenty of good seating capacity.This punt, as…
Humane Mouse Trap – How to Make a Humane Mouse Trap
Live Mouse Trap A piece of an old bicycle tire and a glass fruit jar are the only materials required for making this trap. Push one end of the tire into the hole, making sure that there is a space…
How to Make a Telescope at Home
With a telescope like the one here described, made with his own hands, a farmer boy many years ago discovered a comet which had escaped the watchful eyes of many astronomers.First, get two pieces of plate glass, 6 in. square…
How to Make an Electroscope – Easy Science Projects
An electroscope for detecting electrified bodies may be made out of a piece of note paper, a cork and a needle. Push the needle into the cork, and cut the paper in the shape of a small arrow. Balance the…
How to Make a Paddle Boat
A rowboat has several disadvantages. The operation of the oars is both tiresome and uninteresting, and the oarsman is obliged to travel, backward.Paddle Boat By replacing the oars with paddles, as shown in the illustration, the operator can see where…
Home Foundry – Foundry Work at Home
Many amateur mechanics who require small metal castings in their work would like to make their own castings. This can easily be done at home without going to any great expense, and the variety and usefulness of the articles produced will make the equipment a good investment.
Electroplating at Home – Easy Method of Electroplating
Electroplating at Home – Easy Method of Electroplating – Before proceeding to electroplate with copper, silver or other metal, clean the articles thoroughly, as the least spot of grease or dirt will prevent the deposit from adhering. Then polish the…