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Features

The Web

The global information resource spun out of research into fundamental physics

By Michael Moyer

The Vibrator

One of the first electrical appliances made its way into the home as a purported medical device

By Mara Hvistendahl

The Pill

Infertility treatments led to reproductive liberation

By Christine Soares

The Paper Clip

Despite its shortcomings, the iconic design will likely stick around

By Peter Brown

The Mechanical Loom

Programmable textile machinery provided inspiration for the player piano and the early computer

By Jonathon Keats

The Eye

What was half an eye good for? Quite a lot, actually

By Davide Castelvecchi

The Color Blue

The natural pigment was once a "precious" color

By Peter Brown

The Blueprint

A failure for photography, it was long irreplaceable for duplicating house plans

By Jonathon Keats

Teeth

They long predate the smile

By Christine Soares

Scotch Tape

Most new inventions quickly fall into oblivion; some stick

By Davide Castelvecchi

Religious Thought

Belief in the supernatural may have emerged from the most basic components of human cognition

By Michael Moyer

Recorded Music

The first recordings remained silent for 150 years

By Michael Moyer

Rainbows

The simple magic of their shape and colors still puzzles

By George Musser

Love

Large brains may have led to the evolution of amour

By Kate Wong

Insurance

Its probability-based view of misfortunes helped to shape the scientific outlook

By Bruce Grierson

Graphical Perspective

"Realistic" imagery depends on relatively recent cultural assumptions and technical skills

By George Musser

Feathers

Barbs became plumes long before birds took wing--in fact, long before birds

By Christine Soares

Facial Expressions

Our unique expressiveness may have a three-million-year-old pedigree

By Kate Wong

External Ears

They guide sound to the sensitive middle ear

By Christine Soares

Economic Thinking

Even apparently irrational human choices can make sense in terms of our inner logic

By Davide Castelvecchi

Diamond

Its hardness is natural; its value is not

By Michael Moyer

Cupcakes

The yummy baked good is one of America's first and finest contributions to world cuisine

By George Musser

Cooking

Preparing foods with fire may have made us humans what we are

By Melinda Wenner

Batteries

Their inventor may not have known how they actually work

By Davide Castelvecchi

Ball Bearings

Cheap steel was key to allowing the routine design of parts that rolled against one another

By Peter Brown

Artificial Heart

Did the wrong man get credit for the world's first permanent pump?

By Michael Moyer

Appendix

Not needed, but not useless

By Christine Soares

Antibiotics

These wonder-drug molecules might have evolvedto help bacteria speak with their neighbors, not kill them

By Jessica Snyder Sachs

Anthrax

Solving the riddle of its lethal contagion modernized the understanding of disease

By Bruce Grierson

AIDS and HIV

The viral infections origin among apes might hold a key for someday taming it

By Christine Soares

The Origin of the Mind

The first step in figuring out how the human mind arose is determining what distinguishes our mental processes from those of other creatures

By Marc Hauser

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