THE SHIFTING OF MERCURY'S ORBIT EVIDENCE OF THE GENERAL THEORY OF RELATIVITY Presented by Group 3 General Theory Of Relativity Gravity is not the force between masses, but the curvature of spacetime due to the mass and energy of massive objects. Mercury and its orbit Mercury is the smallest planet in our solar system. It’s a little bigger than Earth’s Moon. The orbit of Mercury is shifting very gradually over time due to the curvature of space-time around the massive sun, according to NASA How does Mercury's orbit prove the General Theory of Relativity? The Sun and its gravity curve the fabric of spacetime, causing the surrounding space to be curved. This curvature causes the orbit of Mercury to be different. How does Mercury's orbit prove the General Theory of Relativity? NASA's Gravity Probe B mission, which was designed to test Einstein's theory of general relativity. The website explains how the gravity of the Earth and its rotation curves the fabric of spacetime, and how this curvature affects the motion of objects in space. The website also includes a section on the geodetic effect, which is the phenomenon that causes the precession of Mercury's orbit, as mentioned in the original statement. ANALOGY Picture a trampoline with a bowling ball in the center. The weight of the bowling ball causes the trampoline fabric to curve downwards. If you roll a marble around the bowling ball, it won't follow a straight line - it will curve around the bowling ball due to the curved fabric caused by the weight of the ball Even if you add more bowling balls (representing the other planets) with less weight, the marble still won't follow an even level with the bowling ball. This is similar to how the mass and gravity of the Sun cause the fabric of spacetime to curve, affecting the orbit of planets like Mercury, as described by Einstein's theory of general relativity. Here's a short video clip visualizing Gravity. SUMMARY The General Theory of Relativity statesthat gravity is not a force between objects, but rather the curvature of spacetime caused by massive objects. Mercury's orbit around the sun doesn't match what we'd expect from other planets' gravity, but the General Theory of Relativity explains why. It says that the Sun's mass and energy curve spacetime, causing Mercury's orbit to differ. This then proves Einstein's theory. References Text Images Videos Info Analogy Visualization https://solarsystem https://uh.edu/~jclarag .nasa.gov/news/95 e/astr3131/lectures/4/e 4/10-things- instein/Einstein_stanfor einstein-got-right/ d_Page7.html https://www.space https://lunar.colorado.e .com/17661-theory- du/jaburns/archive/ast general- r1020may08/Lectures/ relativity.html Mar7.2.pdf https://youtu.be/M TY1Kje0yLg