Advances in science and technology (1938)

The manufacturing process of grinding lens for a telescope of one of the observatories.

Layout Observatory.

Reduced scale model of the telescope slewing mechanisms.

General view of the balloon of the balloon gondola with hermetic.

Balloonist O. Piccard during the preparation of the balloon for flight.

Raised in the air balloon balloon.

Picard together with officers of the balloon stretches the sling.

Fire balloon of the balloon in the air, burning the remains of the balloon fall to the ground.

Military extinguish a fire on the ground.

The experiments for the production of elastic safety glass, prototype manufacturing process.

Test glass rod flexibility.

Processing and polishing the glass bowl on a lathe.

Demonstration of the advantages of products made of elastic shatterproof glass.

Mirror in the form of video.

Unbreakable glass bottle.

The girl tries to break the door of a resilient window with a sledgehammer, the man has a glass baseball bat.

Violinist plays the violin on the glass.

The production process of manufacturing a non-flammable fabric.

Woman trying on a cloak of non-flammable fabric.

Demonstration of the protective properties of non-flammable fabric.

Firefighters in protective suits from non-flammable fabric.

Tests fireproof suits.

aircraft model in a wind tunnel test.

Rotating screws wind tunnel.

Test aircraft plane, covered with non-combustible material.

Telephone operators at the switchboard.

Workflow on telephone and telegraph station, a general view of one of the switches.

Test Barney Konnatom individual submarine in Chicago.

The submarine is floating under the bridge, the audience watching her from above.

Immersion in water of Automotive Research unit during testing.

Hairdresser makes hairstyle swimmer before the performance, covering them with waterproof varnish.

Swimmers in the pool after diving show hairstyles.

Fashion show models of water-repellent and waterproof fabric.

The pilot sits in the plane.

Planes fly over the lake, the signalman delivers pilots to the ground signal.

Spraying chemicals and fertilizers from aircraft at different altitudes.

The experiments on electricity in an American laboratory, a general view of the laboratory.

Sparkling electric arc.

Demonstration in the fuzes pilot action with an electric detonator.