Ace Houdini. Effective trick and its solution

EFFECTIVE FOCUSES AND THEIR CLUES
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Ace Houdini. Focus Secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

Focus Description:

This witty trick was invented by the famous American illusionist at the beginning of our century, the "king of chains" Harry Houdini. To complete it, you will need an ordinary playing card with a hole in the middle, an envelope the size of the card and a ribbon about a meter long. The card is put into an envelope, and the envelope is sealed. The tape is passed through the hole and naturally passes through the hole in the card. But when the envelope is opened, the performer removes the card from the envelope completely freely, as if it had not been sewn with tape.

Focus Ace Houdini

Focus secret:

When a card is placed in an envelope, half of its length falls into the performer's hand through the sidewall of the envelope cut in advance with a razor.

This movement is hidden by the performer's left hand holding the envelope. The tape is passed through the hole with the right hand, after which the thumb of the right hand pushes the card into the envelope. In fact, the tape passes around the card, and not through it, if the envelope is opened, then you can remove it from it, as you can see, the ace is completely free.

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World's smallest Full HD display 19.07.2018

Sony has announced the world's smallest Full HD reflective display and associated signal processor. The presented platform, so to speak, is intended for the production of portable projectors. Mass production of SXRD241A (SXRD, Silicon X-Tal (crystal) Reflective Display) and CXD3554GG LSIs will start in August. The sample kit will cost approximately $106.

The Sony SXRD241A display has a diagonal of 0,37 inches. To keep the resolution within the specified limits (Full HD), it took about 30% to reduce the size of the pixels. Previous reflective displays for microprojectors had pixel sizes of 6 µm. The latest development consists of 4,25 micron pixels. Also in the new model of the reflective screen, the company implemented the technology of screening the incident light, which always penetrated deep into the sensor and, by its influence on the control transistors, introduced distortions into the image.

Separately, a few words about the capabilities of the CXD3554GG signal processor from the new kit. The control electronics of the processor allows you to automatically adjust the image to the screen relief. Portable projectors based on the new Sony kits can be used both at home and in any other place, and do not care about the surface relief on which the image falls. It will be adjusted as much as possible to convey the correct proportions to the screen, regardless of the curvature of the screen. Also, the processor allows you to create a continuous image for the eye from several projectors standing side by side, automatically creating a panoramic view.

In the future, the company expects to release miniature reflective displays and signal processors with support for 4K resolution.

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