title: Can you change kernel in colab notebook?
body: <p>I'm just starting out with collaboratory and am wondering if it's possible to switch the kernel? I'd love to jump to a node or R kernel every so often to run something like a web scraper or a regression. </p>
  
  <p>I see in <a href="https://stackoverflow.com/questions/46941308/python-3-support-in-googles-colab">this question</a> that there is no python 3 currently but didn't know if that meant no other kernels at all. </p>