Want to know everything № 153 (1983)

1.

Photo of 16-year-old high school student A. Ulyanov.

Photo : the Ulyanov family.

Interior of the Ulyanov house in Simbirsk.

Photo of high school students.

Close-Up : A. Ulyanov.

Building of Saint Petersburg University.

University library.

Library form of the student A. Ulyanov.

The audience of the University.

University laboratory.

Photo By A. Ulyanov.

Petropavlovskaya fortress.

Camera in the Peter and Paul fortress.

Prison corridor.

Shlisselburg fortress.

Memorial plaque on the wall of the fortress where A. Ulyanov was executed.

2.

Solutions in test tubes.

A glass stick smears a viscous mass on the glass.

The liquid through the Polaroid filter appears dark.

The crystal through the filter sparkles.

Liquid crystals under a microscope.

With a little heating, liquid crystals "melt", and freeze in the cold.

The dial of the watch with liquid crystal instead of the arrow keys.

Use of liquid crystals in medicine.

3.

Engineer and inventor Vladimir Yu..

Schodrowski climbs a tree with the help of special devices.

Yu Schodrowski rises with your device on the wall of the house.

The inventor climbs the glass wall.

4.

Seed germination captured using time-lapse photography.

The container with sprouts is turned on its side - the sprouts still stretch up.

The cucumber clings to the support with its antennae.

Dandelions cover the flowers before the rain.

In the evening, the flowers close the petals and open them in the morning.