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When using a lever to perform work, we focus not on masses, but on the idea of exerting an inputforceon the lever (calledthe effort) and getting an output force (calledthe loadorthe resistance). So, for example, when you use a crowbar to pry up a nail, you are exerting an effort ...
How do machines make work easier? Machines: Work is calculated by multiplying the force by the distance. There are two different kinds of machines: simple and complex machines. Simple machines include the pulley, lever and wedge, to name a few. Complex machines include two or more simple mach...
two different types of sewing machines: the front-load machine and the top-load sewing machine. Which one do you have: a front-load machine or a top-load sewing machine? A drop-in bobbin on the left and a front-load bobbin compartment on the right. Which one does your sewing machine ...
So how does all of this come together in your home? Let's find out. Circuit Breaker: At Work in Your Home This diagram shows the basic parts and design of a circuit breaker. HowStuffWorks The power distribution grid delivers electricity from a power plant to your house. Inside your hou...
How does a DC motor work? In an Atwood machine, why do the tensions that handle both bodies are the same? Explain how a simple, DC electric motor works. How do forces change energy? What is dynamics in engineering mechanics? How is AC electrical power generated?
How Does a Sewing Machine Work? Components of a typical electric sewing machine. A sewing machine is a small appliance that unites or fastens things by stitching. All sewing machines produce a stitch by hooking the needle thread around a second or bobbin thread. Fabric is pulled through the ...
How does a helicopter hover and steer? Hovering Steering How helicopter rotors work How Sikorsky designed the modern helicopter rotor Advantages and disadvantages of helicopters A brief history of helicopters Find out moreHow does a helicopter stay in the air?The...
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A typewriter like this is completely mechanical: powered entirely by your fingertips, it has no electrical or electronic parts. There's not a microchip in sight! So how do you use it? The basic idea is simple: you press a key (1) and a lever attached to it (2) swings another lever...