Professor Fay Dowker: What is the problem of quantum gravity?

<p>This week, we’re going on a search for the theory of everything.</p><p>The two main theories of physics are at odds with one another.&nbsp;Einstein's general relativity explains gravity, but it contradicts quantum theory: how we understand matter, atoms and particles.</p><p>Theoretical physicist at Imperial College London <a href="https://www.imperial.ac.uk/people/f.dowker" rel="noopener noreferrer" target="_blank">Professor Fay Dowker</a> has been working on a solution to this quantum gravity problem, and tells us why the theories are incompatible, and how she plans to bring them together.</p><p>If you have a burning science question you want an expert to answer, send them to us on twitter at&nbsp;<a href="http://twitter.com/sciencefocus" rel="noopener noreferrer" target="_blank">@sciencefocus</a>, and we may answer them in a future episode.</p><ul><li><strong>Subscribe</strong>&nbsp;to the&nbsp;<em>Science Focus Podcast</em>&nbsp;on these services:&nbsp;<a href="https://www.acast.com/science-focus-podcast" rel="noopener noreferrer" target="_blank">Acast</a>,&nbsp;<a href="https://itunes.apple.com/gb/podcast/science-focus-podcast/id1296673906?mt=2" rel="noopener noreferrer" target="_blank">iTunes</a>,&nbsp;<a href="https://www.stitcher.com/podcast/immediate-media-2/science-focus-podcast" rel="noopener noreferrer" target="_blank">Stitcher</a>,&nbsp;<a href="https://rss.acast.com/science-focus-podcast" rel="noopener noreferrer" target="_blank">RSS</a>,&nbsp;<a href="https://overcast.fm/itunes1296673906/science-focus-podcast" rel="noopener noreferrer" target="_blank">Overcast</a></li></ul><p>Let us know what you think of the episode with a review or a comment wherever you listen to your podcasts.</p><p><strong>Listen to more episodes of the&nbsp;<em>Science Focus Podcast</em>:</strong></p><ul><li><a href="https://www.sciencefocus.com/space/dr-erin-macdonald-is-there-any-science-in-star-trek/" rel="noopener noreferrer" target="_blank">Dr Erin Macdonald: Is there any science in <em>Star Trek</em>?</a></li><li><a h