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Chest Exercises
health.howstuffworks.com/wellness/diet-fitness/exercise/chest-exercises.htm
Learn how to do pushups on a stability ball to build and tone your chest muscles. Get step-by-step directions and photos for this chest exercise.
What is the churning sound I hear from my hard drive whenever it is retrieving data?
computer.howstuffworks.com/question243.htm
What is the churning sound I hear from my hard drive whenever it is retrieving data?
How Do Catapults Work?
science.howstuffworks.com/transport/engines-equipment/question127.htm
How does the ancient catapult work? It doesn't seem like twisted rope and wooden gears or levers would be able to get up the speed to launch heavy loads a great distance.
Types of Galaxies: Why Galaxies Come in Different Shapes
science.howstuffworks.com/why-some-galaxies-come-in-different-shapes.htm
Galaxies are complex systems held together by gravity, but the shapes of different types of galaxies are a result of gravity along with rotation speed and time.
How Caterpillar Backhoe Loaders Work
science.howstuffworks.com/transport/engines-equipment/backhoe-loader.htm
You see backhoe-loaders on nearly every construction site around town. Learn how these amazing machines work and what they are able to do.
How the Rules of War Work
people.howstuffworks.com/rules-of-war.htm
What are the basic rules of war? Learn what acts are considered war crimes in this HowStuffWorks article about the rules of war.
How the Jaws of Life Work
auto.howstuffworks.com/car-driving-safety/accidents-hazardous-conditions/jaws-life.htm
The "Jaws of Life" is a huge tool used to free people from mangled cars and burning or collapsed buildings. Learn about this amazingly powerful machine and how it saves lives.
5 Resistance Band Exercises for Seniors
Resistance band exercises for seniors can be done in the comfort of your home. See our list of 5 resistance band exercises for seniors to get started.
How to Draw Backhoes in 11 Steps
lifestyle.howstuffworks.com/crafts/drawing/how-to-draw-backhoes.htm
How to draw backhoes is presented at HowStuffWorks. Learn how to draw backhoes.
What is the future of robotic surgery?
health.howstuffworks.com/medicine/modern-technology/future-robotic-surgery.htm
Robotic surgery involves high-tech bots that allow surgeons to make precise movements. Learn about the future of robotic surgery at HowStuffWorks.