Try this simple burning candle experiment using two glasses and a candle. Learn how oxygen, heat, and air pressure work in this easy science demonstration. The burning candle experiment is a classic science activity that demonstrates how oxygen, heat, and…
Learn how to build a traditional wood and canvas canoe with classic plans from The Scientific American Boy. Discover timeless boat-building techniques and detailed instructions. Building a wood and canvas canoe is one of the most rewarding woodworking and boat-building…
Learn how to make a simple DIY telescope for kids with easy-to-find materials. A fun educational craft that encourages creativity, imagination, and science learning. Making a DIY telescope for kids is a fun and educational craft that encourages children to…
Learn how to make a DIY hydrometer using simple materials. This easy STEM project demonstrates specific gravity and liquid density with step-by-step instructions. A hydrometer is a simple scientific instrument used to measure the specific gravity (density) of liquids. It…
A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes. The operation of practically all galvanometers is based upon the same principle, and…
How to Make a RheostatIn operating small motors there is as a rule no means provided for regulating their speed, and this often is quite a disadvantage, especially in the case of toy motors such as used on miniature electric locomotives.
How to Make an Anemometer for a Science Project – An Electric Anemometer By Wm. H. Dettman The construction of this instrument is so simple that any amateur can make one and if accurate calibrations are desired, these can be…
The elevator shown in Fig. 96 is a unique mechanical toy well worth one’s making. Release the little car at the top floor, and it will descend to the ground floor, and then return to the starting point, without you…
An exceedingly interesting machine is the so-called wondergraph. It is easy and cheap to make and will furnish both entertainment and instruction for young and old. It is a drawing machine, and the variety of designs it will produce, all…
A windmill for developing from 1/2 to 2 hp. may be constructed at home, the expense being very small and the results highly satisfactory. The hub for the revolving fan wheel is first constructed. – – – Excerpt from the…