### Battery Resistance

An illustration of Mance's method used to measure battery resistance.

### Battery Resistance

An illustration of Mance's method used to measure battery resistance.

### Battery Resistance

An illustration of the assisting and opposing method used to measure battery resistance.

### Buttress of Blocks

Uniting the theories of partial polygons of resistance and centres and lines of resistance, this buttress…

### Shunt-wound Dynamo

"A shunt-wound dynamo with an adjustable resistance, R." -Avery 1895

### Velocities of Falling Bodies

"When a feather and a cent are dropped from the same height, the cent reaches jthe ground first. this…

### Two Objects Falling in a Vacuum

"Remove the air from a high glass tube by means of an instrument called the air-pump... Then... drop…

### Incandescence Lamp

"Incandescence lamps operate essentially on the principle...[that] the current being sent through some…

### Measuring Insulation Resistance

"Illustrating method of measuring insulation resistance." —Croft 1920

### Measure Armature Insulation Resistance

"Testing the insulation resistance of an armature." —Croft 1920

### Measure Insulation Resistance of Motor

"Testing the insulation resistance of a motor or generator from its winding to ground." —Croft…

### First Kind of Lever

"In straight levers of the first kind, the fulcrum is between the power and the resistance, as in fig…

### Second Kind of Lever

"In the second order of levers, the resistance is between the fulcrum and the power; and, as before,…

### Third Kind of Lever

"In the third order of lever the power acts between the prop and the resistance, where also P : W ::…

### Projectile Motion of a Stone

"[This illustration] shows the path of a stone thrown obliquely from the hand. The propelling force…

### Resistance

The electrical symbol for resistance.

### Resistance Box

"When the brass plugs are inserted...the coils are short-circuited, i.e., practically, the whole of…

### Element Resistance

Any mechanical force that tends to retard or oppose motion

### The Forms of Resistance

The four fundamental forms of resistance: A, to tension; B, to compression parallel to fiber; C, to…

### Rheostat

"Nichols Rheostat. a, wooden frame; b, tinned iron strip; c, stationary, and c', movable binding-posts;…

### Telegraph Relay

"With a long main-line and many instruments in circuit, the resistance may be so great as to render…

### Wheatstone Bridge

"The Wheatstone bridge is used as a way to measure resistance of a unknown resitors." -Avery 1895

### Wheatstone Bridge in Circuit

"The Wheatstone bridge is used as a way to measure resistance of a unknown resitors." -Avery 1895

### Wheatstone Bridge with Resistors

"The Wheatstone bridge is used as a way to measure resistance of a unknown resitors." -Avery 1895

### Wheatstones Bridge

"The best method for comparing resistances with great accuracy is the modification of Wheatstone's bridge…