How to get real college credits on YouTube

Have you ever wondered why airplanes haven’t changed much since the rise of commercial air travel? They still use the same “tube and wings” design. But there is exciting news. Engineers are working on a new type of plane that could revolutionize the air travel industry. So, what does this new design look like?

If you were alive in the ‘90s, you’re familiar with the voice of the giant monkey and lizard-killing plumber from many video games. That iconic voice has a face, and to see the words “It’s-a me, Mario!” coming out of this man’s mouth will shock you.

Have you noticed that more people today wear glasses or contacts? It’s not just due to our increased use of screens. There are other factors at play. Over the last 50 years, the number of people needing glasses has risen steadily, but scientists are working hard to reverse this trend through new prevention and treatment methods. So, how would that work?

Some consider coal an antiquated industry and are looking for better energy sources. But some Kentucky coal miners have embraced the new world and took the time to learn how to write code. Check out this tale of inspirational workers as they begin their new career journey.

The U.S. military creates a ton of stuff. Weapons, ammunition and armored vehicles are what come to mind. But the military has been instrumental in some of last century’s greatest inventions. So much so that you probably use something invented by it every day without knowing.

Have you ever wondered what was behind the loudest sound on Earth? To put things in perspective, a vacuum cleaner is around 70 decibels, a blender is about 90, and a live rock band will produce about 120. So what made a sound so loud it may have been almost 250 decibels?

If you have ever seen a hummingbird, you may have noticed the bright colors on its stomach or how it appears to change shades in the light. This is called Iridescence, and many animals have it. The change of color comes from how light is reflected off their bodies. But why do animals have this ability, and what makes it an evolutionary benefit?

Have you ever thought about alternative methods of reaching space other than giant rocket ships? Almost 50 years ago, scientists wanted to learn if it was possible to construct a massive gun to launch something at extreme speeds into space. But did they succeed in this ambitious endeavor?

Plus, Kia and Hyundai’s important update to stop car theft. How mail trucks are mapping cell networks all over the nation. And rent your extra space out for some extra cash.

Have you ever thought about the history of ketchup? This tangy, sweet, slightly spicy condiment can add zest to any meal. But how did it become so widely loved, and how long has it been around?