Science & Technology

Have you ever wondered what it was like to live without electricity? Before the invention of the light bulb, people had to find ways to live and work around nighttime and darkness. From different sleep schedules to making candles, people found different routines to help illuminate the darkness they experienced each night. Would you have been able to live during this “dark” time in history?

Tensions continue to rise between the Soviet Union and the United States as they engage in a Cold War. One of these battles was the space race. Learn how both countries began engineering and scientific effort to be the first to travel into space and back to Earth and the technology necessary to operate in it. See how scientists fight for peace as they begin their efforts to explore the unknown.

Tiny creatures called microbes live in, and on your body that can be helpful. But some are bad like bacteria and viruses–in fact, they can make you sick! Your body needs medicine called antibiotics to fight and kill these germs so you can feel better. You must get a different medicine called a vaccine to keep from catching a virus.

What is a space archaeologist? After decades of leaving behind old pieces of equipment orbiting in space, scientists want to clean it up. An archaeologist determines what is important to save for the history of human space exploration. Learn about new efforts to identify and even retrieve old space equipment! How should scientists determine what should be preserved or what is junk?

Germs are everywhere and make your body sick. Never fear–the body is a germ-fighting machine designed to fight these intruders and keep you healthy. If you get a cut, blood clumps together to stop bleeding. Mucus, the sticky goo in your nose, catches germs to help you sneeze them out. Eyelashes and eyelids form tears that block some germs! Discover ways the body fights to keep germs out.

Have you ever been sick with strep throat? It's an illness caused by bacteria that gives you a painful sore throat! Learn how doctors can diagnose it by your symptoms and a test, and how medicine can cure strep throat so you can get better. Be sure to take all of the medicine until its gone if you have strep. You might even impress your doctor on your next visit with your new knowledge!

An article that describes the Apollo 11 Moon landing mission in July 1969.

How are balloons able to float? Is it magic–or is it one of earth’s elements, like iron or oxygen experiencing an explosive charge? Helium is formed when unstable atoms collide. Helium is found underground with other gases, like methane, which is the main ingredient in natural gas used to heat our homes! Learn how helium was born, and how exploding stars helped create a gas lighter than air!

Imagine if the sunlight could not reach where you lived–the weather would be cold and slippery! The sun does not shine directly on the Arctic and Antarctica, causing the surrounding waters to freeze solid. The earth is tilted as it rotates around the sun, preventing the polar regions from getting enough sunlight. Can you guess how long it takes the earth to orbit the sun?

After a wizard, a witch, and a goblin all fail to transform a frog with their magic wands, two scientists need to explain the rules of reality. While you can't actually turn frogs into diamonds, there are plenty of magical things that science can do!

If you take a hike on a warm summer day, you'll see bees collecting nectar, foxes feasting on fruits and berries, and more! Learn about what animals do in the summer to get ready for the long winter ahead.

During the rainy season in the marshlands, Alligator has almost nothing to eat. When the dry season comes, Alligator digs a hole in the pond and waits for the animals to return. Without Alligator and her hole, there would be far fewer animals living in the marsh.

How do scientists figure out about new animals and plants? They have to use evidence! Using scientific evidence, they can learn that monsters might not always be what they seem. See how scientists used science to identify and debunk some unknown "monsters."

How smart can humans really be? According to a panel of expert canines, we're awfully confusing! We ignore the fact that we have a big water bowl in the bathroom, and don't even re-eat our vomit! Follow along and see why our pets might think we're a little silly.

Your senses are an amazing part of the human body. They allow you to see, smell, hear, and taste things! Did you know you can trick them? Learn about the different optical illusions that will make your senses go wild!

In ancient China, an alchemist mixed an exploding medicine and accidentally invented gunpowder. Learn about the development of gunpowder and other explosives, like nitroglycerin and dynamite, in this fun feature.

Have you ever looked into the night sky and wished that you could walk on the Moon? Find about what it is like from the astronauts that were first to do it! Learn about how Neil Armstrong, Edwin Aldrin, and Michael Collins traveled into space and created history in 1969, and what it was like to take those famous first steps that made “one giant leap for mankind."

The on-screen world is super exciting—there are games, and new friends, and funny videos! But too much of a good thing isn’t always healthy, and not everything you see online can be trusted. Luckily, this book is here to help you navigate the highs and lows of screen time. Through hilarious comics and vibrant illustrations, listeners of all ages will discover how to make good choices, use devices responsibly, find content that’s just right, and be a good friend on and offline.

What animal makes the best pet? A tiger? A grizzly bear? A T-Rex? A killer whale? Or a puppy? Learn why all but one of these animals make great pets and all the things you need to do to properly care for your special pet!

Have you ever wondered what happens to your food when you drop it on the ground? Do you ever wonder why your toy doesn’t break when it falls to the ground? This story helps you learn about the different experiments that scientists have conducted over the last few decades to see what happens when something is dropped! From raindrops to pennies, this story answers any questions you might have about dropping things. You will finally be able to answer the question of whether the "5-second rule" really works!

Have you ever wondered why you get grossed out by different things? Everyone has had that feeling in their stomach when they are grossed out. Sometimes it can give you a stomachache or it can even make you get sick! Both people and animals can get disgusted by a wide range of things. Do you know why you feel this way at times? Well, this story can help you learn how these feelings are a response that allows you to stay healthy and keep germs out of your body!

Have you ever wondered why the sun is so bright? We know today that the sun is a giant star that is millions of years old, but this is a relatively recent discovery! Learn about the different theories that scholars throughout history developed about the sun and why it burns so brightly.

Is magic real? Fairy tales are stories that teach us moral issues, often with the use of magic. But what would happen to those stories if they were set in the real world? See how science and technology can create the "magic" you see in your favorite fairy tales.

Vollis Simpson was a man with a curious mind—always eager to know how things worked and how to fix them. Growing up on a farm in North Carolina, he loved to tinker with machines. And when he served in the Army Air Corps during WWII, Vollis kept right on tinkering. His ingenuity allowed him to build things no one would have thought to create from scraps—a washing machine out of airplane parts and a motorcycle out of a bike. After the war, his passion for metal creations picked up speed—turning into a whirlwind of windmills as far as the eye could see.

From the invention of the wheel to the marvel of electricity, from the groundbreaking medical discoveries to the wonders of the digital age, Top 101 Inventions Of All Time! celebrates the brilliance of human creativity and ingenuity. Whether you're a history enthusiast or simply curious about the marvels that surround us, this book promises an enlightening and exhilarating journey through the realm of invention.