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# I Wish My Teacher Had Shown Me These Animations In Engineering Class

Here's a collection of gifs that explain complex processes in easy ways!

## #10 How A Hypotrochoid Is Made?

The best way to learn something is by watching it as our visual memory is the strongest one! All we needed in our Engineering Class were gifs like these that you'll be seeing on every page of this article! Here, see How A Hypotrochoid Is Made?

First of all, A hypotrochoid is a roulette traced by a point P attached to a circle of radius b rolling around the inside of a fixed circle of radius a, where P is a distance h from the center of the interior circle. Check out the image above and you are gonna love it. Brilliant, isn't it?

## #9 How a Zipper Works

This is one of the best gif I've seen in a very long time. I mean come on, All of us wanted to know how a zipper works, isn't it? Just so that you know, A zipper, zip, fly or zip fastener, formerly known as a clasp locker, is a commonly used device for binding the edges of an opening of fabric or other flexible material, like on a garment or a bag.

Check out the gif of how a Zipper works here and keep reading ahead to see more such crazy gifs regarding different things.

## #8 What is Pi

Now this was a big fat real Maths problem that we faced while we were studying. A Pi. So what is a Pi? The number π is a mathematical constant, the ratio of a circle's circumference to its diameter, commonly approximated as 3.14159. It has been represented by the Greek letter "π" since the mid-18th century, though it is also sometimes spelled out as "pi".

Check out the gif that we have showed you above. This is why Pi is what we know it is! Also, keep reading ahead for more such brilliant gifs.

## #7 How a Pill Press Works

Time to show you how a pill press works! It is a mechanical device that compresses powder into tablets of uniform size and weight. A tablet is formed by the combined pressing action of two punches and a die. To explain you things in a simpler manner, here we show you a gif that'll make you understand how it works! Have a look!!!

## #6 How Walschaerts Valve Gear in Steam Locomotives Works

Next up in the list is How Walschaerts Valve Gear in Steam Locomotives Works! The Walschaerts valve gear is a type of valve gear invented by Belgian railway mechanical engineer Egide Walschaerts in 1844. It is used to regulate the flow of steam to the pistons in steam engines. And to see how it works, check out the gif image above.

## #5 How a Caliper Works

A Caliper is a device used to measure the distance between two opposite sides of an object. A caliper can be as simple as a compass with inward or outward-facing points. So if you always wanted to know how a Caliper works, here we answer you that! Take a look!

## #4 How a Radial Engine Works

Now this is something that every engineer in the world would want to know. How does a Radial Engine Works? The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. So check out how it works in the image above.

## #3 How the Geneva Drive Works

Geneva drive is also known as Maltese Cross. It is a gear mechanism that translates a continuous rotation into an intermittent rotary motion. The rotating drive wheel has a pin that reaches into a slot of the driven wheel advancing it by one step. The drive wheel also has a raised circular blocking disc that locks the driven wheel in position between steps. Check out how it works more clearly in the gif image above.

## #2 How An Alpha Stirling Engine Works

Next in our list of brilliant gifs is the gif of Stirling Engine. A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas (the working fluid) at different temperatures, such that there is a net conversion of heat energy to mechanical work. Check out the image to know how it works.

## #1 How A Sewing Machine Works

And finally its time to tell you how a sewing machine works. I know for a fact that all of us definitely wanted to know how a sewing machine works. A sewing machine is a machine used to stitch fabric and other materials together with thread. Sewing machines were invented during the first Industrial Revolution to decrease the amount of manual sewing work performed in clothing companies. To know how it works, check out the image above!

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