Search Results | tool
Your search for "tool" returned 3,772 results
How Fire Engines Work
science.howstuffworks.com/transport/engines-equipment/fire-engine.htm
We see them all the time, but do you ever think about everything these machines do? A fire engine is a combination personnel carrier, tool box and water tanker. Learn all about this amazing 3-in-1 machine.
How to Clean Solar Panels (Without a Professional)
Keeping your solar panels clean is essential for maintaining their efficiency and maximizing energy output. While professional solar panel cleaning services are available, you can tackle DIY solar panel cleaning with the right tools and techniques to save money.
Can You Identify These Historic Weapons?
play.howstuffworks.com/quiz/can-you-identify-these-historic-weapons
Sharpened blades, bulky siege engines and flexible bows; before rifles, tanks, and grenades, these historic weapons were the tools of war. Do you consider yourself an expert on ancient weapons? Put your knowledge to the test, by doing battle with this quiz!
Screw Head Types: Exploring the Varieties and What They Do
home.howstuffworks.com/different-types-machine-screws.htm
If you're new to construction tools, you're likely baffled by the number of screw head types out there. There are so many! Fortunately, we can help you identify and use the most common types of traditional and machine screws.
10 Innovations in Water Purification
science.howstuffworks.com/environmental/green-tech/sustainable/10-innovations-water-purification.htm
As far back as 1500 B.C.E., people were trying to purify water to make it drinkable. And we're still at it. Today inventors use tools as simple as clay and as sophisticated as carbon nanotubes to bring clean water to the world.
5 Farming Technologies That Changed the World
science.howstuffworks.com/environmental/green-science/5-farming-technologies-changed-world.htm
Farming technologies have allowed the world to be fed, even though most people no longer farm. Only 2 percent of Americans are farmers, versus 90 percent in the 1700s. Which tools and technologies have had the most impact on farming and why?
10 Types of Swords for All Sorts of Circumstances
science.howstuffworks.com/types-of-swords.htm
Swords have served as tools of war, status symbols and ceremonial items across various cultures and historical periods. From medieval Europe to feudal Japan, the types of swords reflect the combat styles, technological advancements and cultural identity of the societies that wielded them.
10 Scientific Laws and Theories You Really Should Know
science.howstuffworks.com/innovation/scientific-experiments/10-scientific-laws-theories.htm
Even if you don't operate a scanning electron microscope all that frequently, you might want to brush up on these 10 scientific laws and theories. After all, they're some of our best tools for describing how the universe works.
How Much Do You Know About Heavy Machinery?
play.howstuffworks.com/quiz/how-much-do-you-know-heavy-machinery
Coming through! You don't want to get in the way of our quiz on the steamroller, the bulldozer and other incredibly powerful tools that humans have made. But if you think you're up to the job, test your knowledge of heavy machines now!
10 Most Dangerous Jobs in America and 5 Common Accidents
money.howstuffworks.com/most-dangerous-jobs-in-america.htm
Heavy machinery and power tools are effective aids for improving efficiency, but they can also lead to serious accidents and fatal work injuries. It's no stretch of the imagination, then, to see how jobs that rely on these resources often land on the list of most dangerous jobs in America.