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Tips for Minimizing Your Carbon Footprint
science.howstuffworks.com/environmental/green-science/minimizing-carbon-footprint.htm
Environmental awareness is at an all-time high. We've moved beyond the message that littering is bad -- today we have Web sites, television programs, documentaries and books examining our impact upon the environment.
The Longest Flight in the World Takes Almost 19 Hours
science.howstuffworks.com/transport/flight/modern/longest-flight-in-the-world.htm
If you've traveled between the Americas to Europe or Asia, you're probably familiar with some of the longest nonstop flights available. These commercial flight routes across the Pacific and Atlantic Oceans can easily take over 10 hours to complete, but what is the longest flight in the world?
The Most Beautiful Countries in the World, Sorted by Region
science.howstuffworks.com/nature/most-beautiful-countries-in-the-world.htm
Any avid traveler knows there are far too many gorgeous landscapes and jaw-dropping views to make one all-encompassing list of the most beautiful countries in the world. We're lucky to have such a diverse world, and beauty is subjective.
Ever Driven Any of the 9 Longest Roads in the World?
science.howstuffworks.com/engineering/civil/longest-roads-in-world.htm
The U.S. has some of the longest highways in the world, but the nine longest are scattered all over the globe.
How Concordes Work
science.howstuffworks.com/transport/flight/modern/concorde.htm
The only passenger plane that flies faster than the speed of sound, and can get from New York to London in less than four hours, is calling it quits. Learn how this amazing plane works.
How do they get the balls in ball bearings so perfectly round and smooth?
science.howstuffworks.com/transport/engines-equipment/question513.htm
Ball bearings can be found in a wide variety of machines and gadgets. If you take a look at one of them you may notice how perfectly smooth they feel and appear. How do they get like that? Find out how ball bearings are created in this article.
What's an Easy Way to Convert Celsius to Fahrenheit?
science.howstuffworks.com/math-concepts/how-convert-celsius-to-fahrenheit.htm
We'll show you both a quick and dirty way, and a precise, more complicated formula for converting Celsius to Fahrenheit (and vice versa).
Why do you have to turn your phone on at airport security?
Going through airport security is the worst part of flying for most people. Now you may be asked to turn your cell phone on in the security line. Why do you have to do that? And does it really keep us safe?
How do you build an underwater tunnel?
science.howstuffworks.com/engineering/structural/build-underwater-tunnel.htm
Underwater tunnels are so commonplace that we rarely think of the great dangers -- and extreme construction techniques -- these modern wonders require. With the opening of the Marmaray Tunnel in October 2013, it's time to take a second look.
What Is Radar?
science.howstuffworks.com/radar.htm
Radar is used to track storms, planes, and weapons and also to create topographic maps. Learn about radar, radar technology and Doppler shift.