The Search for Elusive Gravitational Waves

The video discusses the nature of black holes and their gravitational pull, which even light cannot escape. It highlights Einstein's theory of relativity, which predicted gravitational waves. Despite many of Einstein's predictions being proven, gravitational waves remain elusive. Engineers are developing a system using satellites, known as Lisa, to detect these waves. The satellites will form a triangular formation, orbiting the sun, and use precision lasers to detect changes caused by gravitational waves.

What is a key feature of a black hole that makes it unique?

• It is always visible through telescopes.

• It has such strong gravitation that not even light can escape.

• It has a strong magnetic field.

• It emits a lot of light.

What did Einstein's theory of relativity predict about gravitational disturbances?

• They would cause stars to explode.

• They would result in gravitational waves.

• They would make planets change orbits.

• They would create magnetic fields.

What is the main challenge in detecting gravitational waves?

• They are too fast to measure.

• They are only found in distant galaxies.

• They are too bright to observe.

• They remain elusive despite being generated by black hole activity.

What is the purpose of the gold platinum alloy cubes in the detection system?

• To generate gravitational waves.

• To act as a power source for the satellites.

• To register the elusive gravitational waves.

• To communicate with Earth.

How are the LISA satellites designed to detect gravitational waves?

• By using radio signals.

• By monitoring changes in the position of internal detector cubes.

• By capturing images of black holes.

• By measuring temperature changes in space.