Bulb, light up! Effective trick and its solution

EFFECTIVE FOCUSES AND THEIR CLUES
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Bulb, light up! Focus Secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

Focus Description:

Plug the table lamp into an outlet. Press the switch button several times. The lamp does not light. Unscrew the light bulb from the socket and show that it is completely intact. Put her in her place. By pressing the switch button, say the magic phrase: "Light bulb, light up!" This time the light will turn on.

Focus secret:

The fact is that you previously turned the light bulb out of the cartridge a little. So she didn't burn. Before you show the inside out bulb to the audience, leave the switch button in the off position. Show the audience that the light bulb is good, thereby averting unnecessary suspicion.

Screw in the bulb, this time all the way. Now after your "spell" it will light up immediately.

Author: V.Postolaty

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Random news from the Archive

ECG identification technology 01.03.2014

Researchers from the Canadian company Bionym, together with the University of Toronto, conducted a similar study using ECG material from 1000 people. Research has shown that heart rate identifies a person much more accurately than a face, and almost as accurately as a fingerprint. The result of this research was the Nymi electronic identifier.

The ECG identification system consists of three components: the actual heart rate, an electronic wristband and a computer, tablet or smartphone running Android, iOS, Windows or Mac OS, on which an identification application is installed.

The user needs to install the app and turn on Bluetooth on their computer or mobile device. After that, you need to put a bracelet on one hand, and then attach the other hand to it for a few seconds. The bracelet reads the ECG information and feeds it to the application, which analyzes the ECG and generates a template of unique features. After that, the application will be able to compare the recorded ECG template with the real heart rate of a person, and on this basis, authenticate it in the system.

When the user puts on the bracelet and touches it with the other hand, the device sends a signal to the application and establishes an authenticated session that lasts as long as the bracelet is worn. When the device is removed from the hand, the session is interrupted.

The bracelet is powered by a rechargeable battery charged via USB. A full charge of the battery is enough for about a week, that is, provided that the bracelet is constantly worn, it is quite capable of maintaining an authenticated session all this time.

According to Byonim, authentication is absolutely independent of the state of the heart at the current moment. The unique features that distinguish the rhythm of the heart of each person do not change if the heart rate increases, for example, after physical exertion.

ECG identification is three-factor. The application each time determines and compares not only the owner's ECG pattern, but also the model of his bracelet, as well as the device on which it was first installed. "In order to break into the system, a hacker would have to steal a specific bracelet, a specific smartphone with an app installed, and only after that he can try to reproduce the ECG pattern," explains Martin.

In addition, each wristband has a built-in hardware component that encrypts and stores the authentication keys. These keys sign all the data transmitted between the computer and the bracelet. In addition, transmitted data is encrypted to prevent it from being stolen during transmission.

Nymi also has a built-in motion sensor that can transmit gesture commands. They can be used in various contexts - for example, if you integrate the Nymi application with an automated door opening system, a certain movement of the hand with a bracelet can open the lock. By default, the device comes with a small set of available commands, but developers can create new ones.

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