The Basic Parts of a Computer
Printer Parts Diagrams
Motherboard Layout

Parts of an Alarm Clock
Parts of a Digital Camera
What's Inside a Blow Dryer
How do speakers work?
How do CD and DVD players work?

Speakers - Magnetism & Sound

Make your own cymatics

PC Components
Laptop Parts 101
Motherboard Layout

How Stuff Works. (Search Ink Jet Printers, PC, or Laptop)

What's the purpose of the internal battery?

How does a battery work?
How batteries work
How PC Fans Work

How do Lenses Work?

Inside an LCD Projector

How does an LCD Projector Work?

Simple Machines 1
Simple Machines 2

Forging, Castin, and Machining

Casting: Heating metal to then pour into a mold to get desired shape.
Forging: Using (lots!) of force to change solid metal into a desired shape.


Injection Molding -
Most common form of plastic molding. Pellets are heated to make a thick liquid like texture. They are "injected" through paths into a mold and allowed to cool and then released from the mold. The "paths" then need to be trimmed from the actual part. You can usually find this spot on a product and it looks like a "belly button".

Blow Molding -
General concept is that a "nugget" or preformed piece of plastic is placed into a mold. Mold is closed and air is pushed into the plastic. Plastic is blown or pressed against the mold.

Why Plastic?