An Experiment With Sound Waves Here is an experiment dealing with sound waves that is extremely illuminating. It is just the thing for a gathering of young friends who are scientifically inclined. Stretch a piece of string tightly across the room and on it pin a silk handkerchief or any other handy article made of silk-the larger the better. When …
Read More »A Hutch for Small Pets
A Hutch for Small Pets Most boys keep pets of some kind, and probably you are no exception to the rule. If you have rabbits, doves, guinea-pigs, or such-like creatures, you will know how important it is to house them well and comfortably. Here is a capital hutch which can be made easily. You will agree that it is just …
Read More »Making a Dog Kennel
Making a Dog Kennel Some people think that anything will do for a dog to sleep in. As a matter of fact, a good kennel makes for a healthy dog, and a bad one does the animal harm. Therefore, if your own a canine friend, see that he has comfortable quarters. Below we describe the way to make an attractive …
Read More »Keeping Weekly Periodicals Tidy
Keeping Weekly Periodicals Tidy Probably you buy a boy’s paper every week and, though you may not wish to have the copies bound, you may like to keep them for reference. If so, stack up the parts in their proper order and then, thread a piece of tape through the wire stitches, as shown in the larger illustration. The small, …
Read More »Defying Gravity
Defying Gravity Get a round cardboard tube, such as people use for sending things through the post which they do not wish they do not wish to have ceased, and cut an inch off it, either with a fretsaw or a pocket-knife. Be careful that in doing this you do not flatten any part of the circumference, because it must …
Read More »A Matchbox Holder
A Matchbox Holder The accompanying sketch shows an easily made matchbox holder. The wooden base consists of an odd piece of thin material left over from some other job. It should be be about 7 by 3 inches. When the edges have been nicely trimmed up and smoothed, the metal tray is added. The larger sketch shows how the sides …
Read More »A Capital Puzzle
A Capital Puzzle Take two thin pieces of wood, of the size shown by the square. With your fretwork saw, cut out, from one of them, the X-shaped pattern, and glue the piece surrounding the X to the untouched square. Then, get four tiny ball-bearing the X to the untouched square. Then, get four tiny ball-bearing balls from the nearest …
Read More »A Boat Driven by Air
A Boat Driven by Air If you are one of those boys who like to experiment with things, here is something that will assume you. Get a lightly built model rowing boat and put a small length of metal tubing through the stern end, so that it projects under water. Then blow up an air ballon and close the neck …
Read More »A Cinder Sifter
A Cinder Sifter This is an article which will save a good deal of money in the fuel bill. The easiest way to make it is to get a stout wooden box, with an opening a triffle larger than the sieve which is used in the kitchen to knock out the bottom and cut off the lower part of the …
Read More »Fun in the Aquarium
Fun in the Aquarium Place two aquaria side by side, as shown in the diagram, and stock one of them plentifully with tadpoles. Then procure a length of glass tubing of stout bore and bend it to form a sort of bridge, as the one depicted in the picture. The tubing can be bent by heating it in a Bunsen …
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