Origins: The Start of Everything

Where do rainbows come from? What about flying cars, love and LSD?

Where do rainbows come from, Daddy?

What about flying cars—and LSD?

In the beginning, there was always the toddler's query, which led to the schoolchild's raised hand and, still later, the engineer's back-of-the envelope sketch of a new invention.


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


Everything started somewhere—and someone had to ask. Think of what you are about to read as a collection of queries rooted in childlike curiosity about the world around us and the still larger universe that stretches beyond.

After exploring the big questions in the articles that precede this section—the origins of the universe and the beginnings of life itself—we now turn to everything else. The origins of external ears, Scotch tape, the ethereal evolution of love and even artificial hearts are revealed in the pages that follow.

Of course, many of you were wondering what came before the big bang. But others ponder an even more urgent question. Read on, and you may find out who or what prevailed in the contest between the chicken and the ovum. —The Editors

Topics available in the premium version of this article:

Rainbows The simple magic of their shape and colors still puzzles

Flying Car A long-standing dream

Love Large brains may have led to the evolution of amour

Digital Audio Player Mobile music rocked the record industry

Asteroids The small fry of the solar system have troubled pasts

Batteries Their inventor may not have known how they actually work

External Ears They guide sound to the sensitive middle ear

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

Scotch Tape Most new inventions quickly fall into oblivion; some stick

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

Artificial Heart Did the wrong man get credit for the world’s first permanent pump?

Coriolis Effect The earth’s spin influences hurricanes but not toilets

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

Teeth They long predate the smile

Egg The answer to the age-old riddle is biologically obvious

Cancer When a cell’s controls break down, chaos is unleashed

The Stirrup Invention of the stirrup may rival that of the longbow and gunpowder

LSD An inquisitive Swiss chemist sent himself on the first acid trip

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

Clocks Their origin is one of the deepest questions in modern physics

Legs, Feet and Toes The essential parts for walking on land evolved in water

Paper Money A substitute for coins turned into a passport for globalization

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

Buckyballs and Nanotubes A once overlooked form of carbon may represent the future of technology

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

Carbon Synonymous with life, it was born in the heart of stars

The Placenta An eggshell membrane evolved into the organ that lets fetuses grow in the womb

Graphical Perspective “Realistic” imagery depends on relatively recent cultural assumptions and technical skills

The Paper Clip Despite its shortcomings, the iconic design will likely stick around

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

Intermittent Windshield Wipers A now routine automotive feature pitted an individual inventor against the entire industry

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

Diamond Its hardness is natural; its value is not

The Pill Infertility treatments led to reproductive liberation

The Mechanincal Loom Programmable textile machinery provided inspirationfor the player piano and the early computer

Mad Cow Disease Cannibalism takes its revenge on modern farms

Photosynthesis The reaction that makes the world green is just one of many variants

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

Feathers Barbs became plumes long before birds took wing—in fact, long before birds

Bone Structure, strength and storage in one package

AIDS and HIV

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

Recorded Music The first recordings remained silent for 150 years

The Color Blue The natural pigment was once a “precious” color

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

Gamma Rays To create one typically means you have to destroy something, be it a single particle or an entire star

Light It emerged not with a quick flip of the switch but with a slow breaking of the dawn

Chocolate Mixing the bitter treat with milk was the popular breakthrough

Internal-Combustion Engine Still powering the world’s vehicle fleet 130 years on

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

Appendix Not needed, but not useless

The Web The global information resource spun out of research into fundamental physics

Tectonic Plates The long, strange trip of continental drift

Note: This article was originally printed with the title, "Origins."

Davide Castelvecchi is a staff reporter at Nature who has been obsessed with quantum spin for essentially his entire life. Follow him on X @dcastelvecchi

More by Davide Castelvecchi

Mara Hvistendahl is an investigative reporter at the New York Times and author of Unnatural Selection: Choosing Boys over Girls, and the Consequences of a World Full of Men (PublicAffairs, 2011). Her newest book is The Scientist and the Spy: A True Story of China, the FBI, and Industrial Espionage (Riverhead, 2020).

More by Mara Hvistendahl

Michael Moyer is the editor in charge of physics and space coverage at Scientific American. Previously he spent eight years at Popular Science magazine, where he was the articles editor. He was awarded the 2005 American Institute of Physics Science Writing Award for his article "Journey to the 10th Dimension," and has appeared on CBS, ABC, CNN, Fox and the Discovery Channel. He studied physics at the University of California at Berkeley and at Columbia University.

More by Michael Moyer

George Musser is a contributing editor at Scientific American and author of Putting Ourselves Back in the Equation (2023) and Spooky Action at a Distance (2015), both published by Farrar, Straus and Giroux. Follow him on Mastodon @gmusser@mastodon.social, Bluesky @gmusser.bsky.social and Threads @georgemusserjr@threads.net

More by George Musser

Ricki Rusting is managing editor of Scientific American.

More by Ricki Rusting

Christine Soares is based in New York City.

More by Christine Soares

Gary Stix is the former senior editor of mind and brain topics at Scientific American.

More by Gary Stix

Kate Wong is an award-winning science writer and senior editor for features at Scientific American, where she has focused on evolution, ecology, anthropology, archaeology, paleontology and animal behavior. She is fascinated by human origins, which she has covered for nearly 30 years. Recently she has become obsessed with birds. Her reporting has taken her to caves in France and Croatia that Neandertals once called home to the shores of Kenya’s Lake Turkana in search of the oldest stone tools in the world, as well as to Madagascar on an expedition to unearth ancient mammals and dinosaurs, the icy waters of Antarctica, where humpback whales feast on krill, and a “Big Day” race around the state of Connecticut to find as many bird species as possible in 24 hours. Wong is co-author, with Donald Johanson, of Lucy’s Legacy: The Quest for Human Origins. She holds a bachelor of science degree in biological anthropology and zoology from the University of Michigan. Follow her on Bluesky @katewong.bsky.social

More by Kate Wong

Philip Yam is the managing editor of ScientificAmerican.com, responsible for the overall news content online. He began working at the magazine in 1989, first as a copyeditor and then as a features editor specializing in physics. He is the author of The Pathological Protein: Mad Cow, Chronic Wasting and Other Prion Diseases.

More by Philip Yam
Scientific American Magazine Vol 301 Issue 3This article was published with the title “The Start Of Everything” in Scientific American Magazine Vol. 301 No. 3 (), p. 70
doi:10.1038/scientificamerican092009-3ILggfbX9vBJ79Nexy7EIz

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe