What is a bend in space-time?
Large objects such as the Sun and planets aren’t the only masses that warp the fabric of space-time. Anything with mass—including your body—bends this four-dimensional cosmic grid. The warp, in turn, creates the effect of gravity, redirecting the path of objects that travel into it.
Why does mass bend space and what exactly in space is being bent?
When a smaller mass passes near a larger mass, it curves toward the larger mass because spacetime itself is curved toward the larger mass. The smaller mass is not “attracted” to the larger mass by any force. The smaller mass simply follows the structure of curved spacetime near the larger mass.
Is it possible to curve spacetime?
Light travels through spacetime, which can be warped and curved—so light should dip and curve in the presence of massive objects. This effect is known as gravitational lensing GLOSSARY gravitational lensingThe bending of light caused by gravity .
Does space actually bend?
Actually, mass doesn’t actually bend space! A concentration of energy has an effect on the surrounding space. See the Foundation of the General Theory of Relativity where Einstein said “the energy of the gravitational field shall act gravitatively in the same way as any other kind of energy”.
Why does energy bend space-time?
Since matter carries energy (via Einstein’s famous relation that energy is mass times the speed of light squared), such objects will have a gravitational field and so they will distort space-time. This gravitational field is in addition to that produced by the matter of the charge or magnet.
How does curved spacetime cause acceleration?
The curvature of spacetime (not just space) is responsible for gravity. Literally, near heavy objects, the “future direction” points slightly down. So anything that moves forward in time will find its trajectory pointing down slightly. This takes the form of downward acceleration.
Why does energy bend space time?
How much energy does it take to bend space time?
With that said, no energy is consumed when you bend spacetime. All matter bends the spacetime around it without cost. So if you already have enough matter in place to bend spacetime sufficiently to cause your 1kg object to move 1 meter, then the cost is zero.