The film tells about the study of the nature of earthquakes, about the processes occurring in the bowels of the Earth.
Newsreel: volcanic eruption, clouds of smoke and dust rise up.
Destruction of buildings as a result of an earthquake.
View of the city street after the earthquake.
A crack in the ground formed as a result of an earthquake.
People are saving their belongings and household belongings.
Panorama of a part of the destroyed building.
A child makes his way among the ruins.
Refugees leave the destroyed settlement.
People on smoldering ruins.
View of a burning settlement (from above).
The destruction of a burning wooden house.
Special equipment that signals earthquakes.
The work of the recorder.
An employee of a research seismic station at the console.
Seismograph created by the Russian scientist Golitsyn at the beginning of the 20th century.
Samples of modern seismic electronic devices.
View of the corridor of the seismological station.
Circles on the water from a thrown stone.
The scheme of propagation of earthquake waves in the earth's thickness (animation).
Processing of the diagram of the seismograph recorder.
Determination of the focus and epicenter of an earthquake on the globe.
Diagram of the passage of earthquake waves underground (animation).
A diagram of the routes of seismic waves in the thickness of the globe and a diagram of its internal structure (animation).
The globe in the section.
Newsreel 1965: view of the Earth's surface from space.
Cosmonaut Leonov A.A.'s spacewalk on March 18, 1965.
Volcanologist at the crater of the awakened volcano.
Volcanic lava flows.
The scheme and composition of the layers of the Earth's crust (animation).
Diagram of the Earth's core with indication of pressure and temperature (animation).
Corresponding member of the USSR Academy of Sciences Belousov V.V. speaks about the possibility of obtaining a true picture of the Earth's interior, about hypotheses and assumptions in this area, about the reasons for studying the processes taking place in the bowels of the Earth, about the practical side of scientific research on this topic, the search for minerals, about the international project "Upper Mantle", about the study of deep processes that determine the development of the Earth's crust and its structure, about the prospects of the project (synchronously).
Belousov Vladimir Vladimirovich -- geologist, geophysicist, geotectonist
Locations: Moscow  USSR  Space 
Seasons: Spring  Summer 
Types of erupting volcanoes.
Clouds of smoke and steam burst out of the ground.
Volcanic lava flows.
A fragment of a meteorite.
The surface of the meteorite.
Grinding a part of a meteorite in a mortar.
Conducting experiments on partial reproduction of the processes of planet formation in the laboratory of the Institute of Geochemistry of the USSR Academy of Sciences.
Heating of meteorite powder by high-frequency currents in a tubular furnace, melting and crystallization of the substance.
The scheme of separation of the components of the substance in the process of zone melting (animation).
Meteorite powder during zone melting.
A rod made of basalt and the substance that makes up the Earth's mantle, obtained as a result of the experiment.
Volcanic eruption, clouds of smoke rise up.
The explosion of the earth's crust on the plain and in the swamp.
A seismologist monitors explosions with sensitive instruments.
The result of deep seismic sounding in the form of diagrams.
Research ship "Vityaz" in the Indian Ocean during bottom sounding.
The ship's captain keeps in touch with seismologists.
The scheme of exploration of the seabed using seismic echo (animation).
Pieces of rock recovered from the seabed.
The head of the expedition, G.B. Udintsev, talks about the pieces of rock found at the bottom as parts of the Earth's mantle, about the change in the heated mantle matter, the proximity of the composition of rocks to the meteoritic substance from which the planet Earth was formed (synchronously and off-screen).
The study of the obtained samples in the laboratory, conducting scientific experiments, the faces of scientists.
Conducting research with the help of special devices and equipment.
Creating experimental conditions in the laboratory that are close to the conditions of the Earth's depths.
View of a part of one of the presses creating pressure.
The scale of the pressure gauge.
Artificial diamonds obtained at an ultra-high pressure installation.
Conducting another experiment, the face of a scientist.
Pages of a popular scientific publication about the exploration of the Earth's interior.
Photos and diagrams of American research to reach the Earth's mantle under the ocean floor.
The scheme of deep drilling on the mainland for the study of the Earth's mantle, proposed by Soviet scientists (animation).
Drillers descend from the tower by stairs.
View of the drilling rig territory (from above).
The descent of the drill into the well.
The drilling process.
The drill rotor rotates.
Udincev Gleb Borisovich -- geographer, oceanographer-geomorphologist
Locations: Moscow  USSR  At Sea 
Seasons: Summer