Ohne Titel

The Importance of Gravitational Waves

• Why it matters?
• What are gravitational waves?
• How does this affect the previous knowledge?

Folie 2

• 
• El universo es enorme

Previous Knowledge

• Does anyone know what are gravitational waves?
• Does anyone think this is important?
• What have you heard?

Gravitational Waves: Started with Einstein...

• Albert
• Einstein 1879-1955
• General
• Relativity
• Gravity
• “Matter
• tells space how to curve, space
• tells matter how to move.”
• Albert Einstein in 2 minutes (educational video for kids) (Einbetten)

Gravitational Waves

• -All objects objects in the universe have a gravitational force
• -Objects with large gravitational force and fast movement
• -Example: two rapidly spinning black
• holes
• or
• neutron stars

Such a weak force

• -Gravity is the weakest of the four fundamental forces
• -A special event was required to generate large enough gravitational waves
• -“More
• energy than all the other stars in the universe combined.”
• -An event 1.3 billion years ago

LIGO

• -Laser
• Interferometer Gravitational-Wave Observatory
• -Separated by 1,800 miles
• -Two giant mirrors and lasers
• -Interference pattern
• Minute Physics What is Gravity (Einbetten)

Measuring

• -Most precise measure ever made
• -Fraction of an atomic diameter
• -Engineering
• -People were skeptical about the discovery
• -They have been detected a 2nd time

Importance?

• -First, Einstein’s
• last prediction to be proven
• -Understand gravity
• -General
• relativity is correct
• -Greater Understanding of the universe and gravity

Understanding the Universe

• -New forms
• of electromagnetic waves
• -Gravity is found in places where
• light can’t
• get
• -Listening to the universe
• -Study the early universe

Folie 11

• Gravitational Waves Hit The Late Show (Einbetten)