Food & Drink1 min ago
Gravitational lensing
How do you go about it?
Answers
Only 1 answer
Best Answer
No best answer has yet been selected by MargeB. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.
Get a very big object and use it as a lens to see a faint very far away object. If you don't have any objects with a huge mass then use one that's already there. Gravity 'bends' space around it. The greater the gravitation, the greater the lensing. Hence, if you use a distant galaxy cluster you may be able to see more distant objects beyond it. http://antwrp.gsfc.nasa.gov/apod/ap040627.html
An example of gravitational lensing at work. This galaxy cluster has such a large total mass and distance that the light from much more distant galaxies has been focussed towards earth. The APOD explanation is probably better than mine.
An example of gravitational lensing at work. This galaxy cluster has such a large total mass and distance that the light from much more distant galaxies has been focussed towards earth. The APOD explanation is probably better than mine.
Only 1 answer
Related Questions
Sorry, we can't find any related questions. Try using the search bar at the top of the page to search for some keywords, or choose a topic and submit your own question.