How to become a scientist

Chapter 121: Transcriber’s Notes:

Open in WeRead

Explore more books like this:

About This Book

A practical handbook of hands-on experiments and demonstrations across chemistry, optics, pneumatics, mechanics, acoustics, pyrotechnics, and recreational mathematics aimed at young readers and amateur experimenters. It provides clear, step-by-step procedures for chemical curiosities such as invisible inks, combustion and gas effects, and reactive visual displays, alongside mechanical and optical tricks and mathematical puzzles. Each entry explains materials and methods while highlighting the basic scientific principles that produce the effects, and many items are designed for parlor entertainment or educational play. Practical cautions and brief explanatory notes accompany the instructions to encourage safe, instructive practice.

Transcriber’s Notes:

The one footnote has been moved to the end of its section.

Punctuation has been made consistent.

Mathematical notation has been standardized to current conventions. For example, the notation 1-2 for fractions has been changed to 1/2.

Variations in spelling and hyphenation were retained as they appear in the original publication, except that obvious typographical errors have been corrected.

p. 14: There is no illustration in the original book (This illustration represents)

The following change was made:

p. 7: 2 changed to 3 (No. 3, it)