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Entertaining experiments in chemistry

Entertaining experiences at home / Chemistry experiments for children

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Soak the thread several times in a strong solution of table salt, drying it each time before lowering it into the solution again.

Miraculous Thread

Tie a pencil from below to the dried thread and fix its second end in a tripod. Moisten the thread with acetone or gasoline and set it on fire. It burns, but the pencil does not fall, this is the merit of table salt.

Author: Shkurko D.I.

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Random news from the Archive

New car steering angle sensor 15.05.2007

In the automotive industry today, the development of electrical and electronic systems such as hybrid electric vehicles and electric power steering meet the challenges of fuel economy and driving comfort.

In this case, the electric power steering should be equipped with angle sensors to determine the angle of rotation and torque. In the past, magnetic sensors have been used for this purpose, such as sensors based on a hall element or a coordinate converter. However, most of these devices are installed inside and near electric motors or generators that require protection from magnetic noise.

Sumida's rotor angle sensor is designed by its German VOGT Electronic Components division using a non-ferromagnetic structure and has a high operating frequency. This unique development makes it possible to achieve immunity to magnetic interference noise of electric motors. The product does not need to be fixed on a rotary axis, and is suitable for a different number of pole pairs, therefore, it allows to achieve greater application flexibility.

Main applications: hybrid electric vehicle, electric power steering, ISO, X-by-wire (a safety system that allows you to keep the car working if individual elements fail), active suspension, passenger weight sensor.

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