Articles Index

Perpetual Motion Machines and Free Energy
Serious discussions of perpetual motion are now occurring on the topics of open systems, aether theories, and vacuum energy - collected designs for perpetual motion machines

Post It Note
Arthur Fry a 3M chemist invented the post it note and Spencer Silver invented the glue

The History of Penicillin
Penicillin is one of the first and still one of the most widely used antibiotic agents - derived from the Penicillium mold.

Photography Timeline
Timeline of the history of photography

History of Photography
The complete history of photography - the word is derived from the Greek words for light and writing - first used by Sir John Herschel in 1839.

Famous Trademarks - Pillsbury Doughboy
Pillsbury Doughboy - The Life and History of the Pillsbury Doughboy

Pumpkin Carving Resources
Resources for pumpkin carving - history and kits

History of the Metal Detector
Alexander Graham Bell invented the first crude metal detector and the first portable metal detector was invented by Gerhard Fischar.

Famous Inventions : A to Z
Which inventor made what famous invention - patent histories on famous inventions.

The History of Printing and Printing Processes
The history of the printing press - type - typecasting machines - sterotyping - linotype and more.

Press Release
A press release is a public statement made to the media - how do you wtite a great one and who wrote the first.

The History of Pinball
The history of pinball - the first pinball machines appeared in the 1930s.

History of the Plow
The farmers of George Washington's day had no better tools than had the farmers of Julius Caesar's day - in fact - Roman ploughs were superior to those in general use in America eighteen centuries later.

Pom Poms The Cheerleading Innovation
Cheerleading has quite a history behind it - for example who invented pom poms

Mr Potato Head
Mr Potato Head was patented in 1952 - sp Mr Potatohead">

The History of Plumbing
Ancient and modern plumbing histories from around the world - bathes and showers and toilets and water closets.

Photoluminescence
Photoluminescence spectroscopy is a contactless nondestructive method of probing the electronic structure of materials.

The History of Plastics
The history of plastic different types of and timeline of plastics.

Push Pin
In 1900 Mr Edwin Moore rented a room and devoted each afternoon and evening to making push-pins - an article of his own invention which may be briefly described as a pin with a handle.

Pneumatic Tools
Pneumatic devices are various tools and instruments that generate and utilize compressed air - The first documented genuine pneumatic tube in the United States is officially listed in a patent issued to Samuel Clegg and Jacob Selvan in 1840

Play-Doh - Who Invented Play-Doh
Play Doh was originally designed as a wallpaper cleaner.

Postmaster Generals of the United States
A list of all Postmaster Generals - under the names of those who appointed them and the dates the Postmaster General took office follows.

Alexander Graham Bell's Photophone - Ahead of its Time
Alexander Graham Bell transmitted the first wireless telephone message on his newly-invented photophone.

Where Did Patent Medicine Come From?
The term patent medicine does not necessarily mean the potion is patented.

Sun Energy - Photovoltics and Photovoltaic Systems
Photovoltaic systems convert light energy into electricity.

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