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Stories by M. Hopkins

A Scientific Top

October 9, 1886 — M. Hopkins

The Demagnetization of Watches

October 2, 1886 — M. Hopkins

The Cycloidotrope

December 19, 1885 — M. Hopkins

The Microscope in the Mechanic Arts

July 25, 1885 — M. Hopkins

Simple Sound Recorder

May 27, 1882 — M. Hopkins

A New Use for the Induction Balance

July 30, 1881 — M. Hopkins

Dynamic Electricity

July 23, 1881 — M. Hopkins

Expansion Voltameter

July 9, 1881 — M. Hopkins

Simple Holtz Electrical Machine, and Some Experiments in Static Electricity

April 30, 1881 — M. Hopkins

Wire Apparatus for Laboratory Use

December 4, 1880 — M. Hopkins

New Recording Galvanometer

October 30, 1880 — M. Hopkins

Simple Mercurial Air-Pump

April 17, 1880 — M. Hopkins

An Electrical Cabinet

August 30, 1879 — M. Hopkins

A Few Experiments with the Induction Coil

March 8, 1879 — M. Hopkins

Telephone Calls

February 8, 1879 — M. Hopkins

How to Make an Induction Coil

January 25, 1879 — M. Hopkins

Galvanic Batteries.—No. 1

January 4, 1879 — M. Hopkins

Spider Engineering

April 13, 1878 — M. Hopkins

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