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Can New York City's Skyscrapers Accommodate Vertical Farming?
science.howstuffworks.com/environmental/conservation/issues/vertical-farming.htm
Vertical farming is a method of large-scale farming in an urban environment. Learn about the benefits of a vertical farm and vertical farming technology.
Why do you have two lungs but only one heart?
health.howstuffworks.com/human-body/systems/circulatory/two-lungs-one-heart.htm
The two lungs-one heart system evolved because that was all we needed to survive. Learn more about the evolution of the two lungs-one heart system.
How Sweat Works
health.howstuffworks.com/skin-care/information/anatomy/how-sweat-works.htm
Sweat is your body's way of cooling itself. Learn how the body makes sweat, why we sweat and what factors affect sweating.
What's a Mezuzah and What's Inside the Case?
people.howstuffworks.com/mezuzah.htm
Many Jewish people will affix a mezuzah, a decorative case, to the doorframe of their houses. What's the significance of this?
Crumple Theory: We Can Learn a Lot From How Paper Crumples
science.howstuffworks.com/crumple-theory.htm
Crumpling is a physical process that occurs when a thin sheet is forced to adapt to a smaller space and is seen in everything from DNA packing in a cell nucleus to the formation of mountains.
What crops can be used for biomass energy?
auto.howstuffworks.com/fuel-efficiency/biofuels/crops-used-biomass-energy.htm
What crops can be used for biomass energy? Keep reading to learn about crops that can be used for biomass energy.
What Part of the World Do These Lethal Snakes Live In?
play.howstuffworks.com/quiz/what-part-the-world-do-these-lethal-snakes-live
These lethal snakes are known for causing havoc for the people who encounter them. But, do you know where they are found? Take this quiz and find out!
The Ultimate Carpentry Quiz
play.howstuffworks.com/quiz/the-ultimate-carpentry-quiz
Although carpentry is one of the oldest trades, it remains vital to the construction of our communities. Whether you're a master carpenter or have never nailed a board in place, how much do you know about this essential trade?
How Radio Controlled Toys Work
science.howstuffworks.com/rc-toy.htm
RC toys come in many varieties from cars to robots. Learn about the parts of a radio controlled toy and see how RC toys operate without the aid of wires.
What is the difference between a hardwood and a softwood?
science.howstuffworks.com/life/genetic/question598.htm
What is the difference between a hardwood and a softwood? How hard does a tree have to be to be considered hardwood?