Theory of General Relativity and Newton's Laws of Gravity

Theory of General Relativity

• Completely changed the notion of the universe, shedding light on the birth of the universe, planetary orbits, and black holes.
• Has practical uses in GPS navigation.

Newton's Laws of Gravity

• Described gravity as a force generated by the mass of an object, causing attraction between objects.
• Heavier objects attract more intensely, which is why we stand on the ground on Earth.
• Planets move around the Sun due to the Sun's gravity.

Limitations of Newton's Theory

• If the Sun were to disappear, planets would instantly abandon their orbits, as there would be no gravity attracting them to the Sun.
• Gravity is considered a force with immediate action, regardless of distance between bodies.

Einstein's Theory of General Relativity

• Developed between 1905 and 1915.
• Imagines the three dimensions of space and one dimension of time as a fabric (space-time) shaped by celestial bodies.
• Massive objects like the Sun warp space-time, causing gravity.
• Gravity is no longer considered a force of attraction between bodies, but an effect of space-time curvature on bodies.

Implications of General Relativity

• If the Sun were to disappear, a disturbance in space-time would form a gravitational wave that would travel to the planets at the speed of light.
• The Earth would change its orbit at the same time as the Sun goes dark.

Impact of General Relativity

• Revolutionized the understanding of the universe.
• Made Albert Einstein a world celebrity.
• Fostered new scientific discoveries and imagination.

Theory of General Relativity

• Completely changed the notion of the universe, shedding light on the birth of the universe, planetary orbits, and black holes.
• Has practical uses in GPS navigation.

Newton's Laws of Gravity

• Described gravity as a force generated by the mass of an object, causing attraction between objects.
• Heavier objects attract more intensely, which is why we stand on the ground on Earth.
• Planets move around the Sun due to the Sun's gravity.

Limitations of Newton's Theory

• If the Sun were to disappear, planets would instantly abandon their orbits, as there would be no gravity attracting them to the Sun.
• Gravity is considered a force with immediate action, regardless of distance between bodies.

Einstein's Theory of General Relativity

• Developed between 1905 and 1915.
• Imagines the three dimensions of space and one dimension of time as a fabric (space-time) shaped by celestial bodies.
• Massive objects like the Sun warp space-time, causing gravity.
• Gravity is no longer considered a force of attraction between bodies, but an effect of space-time curvature on bodies.

Implications of General Relativity

• If the Sun were to disappear, a disturbance in space-time would form a gravitational wave that would travel to the planets at the speed of light.
• The Earth would change its orbit at the same time as the Sun goes dark.

Impact of General Relativity

• Revolutionized the understanding of the universe.
• Made Albert Einstein a world celebrity.
• Fostered new scientific discoveries and imagination.

Albert Einstein's Theory of General Relativity

• Revolutionized understanding of the universe, explaining the birth of the universe, planetary orbits, and black holes
• Has practical applications, such as in GPS navigation

Gravity: Newton vs. Einstein

• Newton's theory: Gravity is a force generated by an object's mass, causing attraction between objects
• Einstein's theory: Gravity is an effect of space-time curvature caused by massive celestial bodies, not a force

Development of General Relativity

• Developed between 1905 and 1915
• Imagines space-time as a fabric surrounding us, shaped by celestial bodies

Key Features of General Relativity

• Space-time curvature caused by massive celestial bodies, like the Sun, warps surrounding space-time
• Planets follow the curve of space-time, remaining in orbit
• Gravity is not an attraction between bodies, but an effect of space-time curvature

Gravitational Waves

• If the Sun disappeared, a disturbance in space-time would create a gravitational wave
• The wave would travel to the planets at the speed of light
• The Earth would change its orbit at the same time as the Sun goes dark, demonstrating gravity as an effect of space-time curvature

Impact of Einstein's Theory

• Revolutionized understanding of the universe
• Established Einstein as a world celebrity
• Inspired scientists and sparked imagination