JAES Learning

What is a screw jack and how it works

A Screw Jack also known as a Worm Screw Jack, is a device used to convert rotational motion into a “push-pull” linear motion. It utilises the property of a screw thread providing a mechanical advantage which means that it can be used to amplify force. The rotary movement can be supplied manually or thanks to the help of hydraulic or pneumatic motors. Or thanks to electric motors, like the induction motor!

In this video we will focus on the working principle of the worm screw jack.

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Have you ever wondered what happens when you turn the key inside your car ignition?

In this simple video we will explain all the steps involved in this process, from the ignition to the operation of the internal combustion engine.

When you get on your car the first thing you do, after putting the seat belts on, is to insert the key in the ignition switch to start the engine.

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How to change Gear? The Manual Transmission explained

Do you ever wonder why we need to change gears while we’re driving?
And what is the reason why we hear that horrible grinding noise while we’re shifting gears?

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How Car Steering Works?

What happens when we turn the steering wheel of our car? Let’s find it out in this video, in which we explain the steering system’s functions.

What’s fascinating in cars is that when we turn the front wheels, all the vehicle will turn in that direction. But why does the car follow a precise curve after steering instead of proceeding in a straight line? To find the answer to this question we need to know the physics of the wheel, one of the greatest inventions in human history.

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How the Breaking System works

Types of brakes, ABS – anti lock braking system

Have you ever wondered how your car manages to brake? In this video we will explain how your car’s braking system works.

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Stepper Motor (Part 1)

In this video we will see why the stepper motor is considered, among other electric motor types, the ideal choice for all those applications that require maximum precision in angular movements and rotational speed. Stepper motors in fact offer excellent speed control, repeatability of movement and precise positioning.

The same precise positioning required during the operation of this robotic arm, used by JAES inside its automated video acquisition system.

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Stepper motor (Part 2)

In the first part of the video we had the chance to see the working principle of the permanent magnet stepper motor, as well as the variable reluctance stepper motor.

Now we will focus on the working principle of another type of stepper motor. This is the most commonly used stepper motor type today which combines the features of a permanent magnet stepper motor with those of a variable reluctance stepper motor. We are talking about of the Hybrid stepper motor.

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How the Internet Works? (Part 1)

The dynamic, user-friendly interface of the Internet as we know it today, is breathed life into by a multi-layer global network system that connects hundreds of millions of computers.

If you are watching this video, it is because a sophisticated signal transmission system has been developed and implemented over the years.

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How the Internet Works? (Part 2)
Internet’s Undersea Cables - ICANN - Data transfer

In the first part of this video we had the chance to understand how Internet communication works.
Now we are going to see how fiber optic cables are laid on the seabed and how the data finally reaches our laptop and smartphone.

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What is a TRIODE and how does it work?
The importance of the Grid

A TRIODE is an electronic amplifying device belonging to the vacuum tube family.
In electronics, a VACUUM TUBE is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.

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