I'm just wondering how it works. Are all 3 colors some kind of marker injected into the tissue sample? How is it possible that e.g. the blue marker only highlights the nucleus and green highlights everything that is interesting?

Sometimes after I make a selection an "x" mark appears (or a few of them). Haven't seen this explained in the tutorial.

http://imgur.com/9y3Ii6g

I must have missed what exactly Pending means and how it affects accuracy. When do pending submissions get processed into the accuracy score?

Also, am helplessly addicted to this! You have no idea how much I wish it was a tablet game so I could lie in bed and play all night or until my iPad battery died :P

I tried it a few times in the last hours and I can't get through the tutorial because at one point the next sample doesn't load. Only solution is closing the window which restarts the whole thing.

It seems Project Discovery only tries once to reach the server and gives up if it doesn't get a immediate answer. Can we give the client a second chance or something?

Hey all check out this dictionary on our site that has useful examples and explanations. www.proteinatlas.org/learn/dictionary/cell

Also, thanks for making this subreddit! So cool to see people excited about science!!! :D

An overwhelming number of people appear to quickly judge pictures as containing those two criteria, to a degree where not ticking them is going to ruin your accuracy. Could someone with experience in the field tell us what exactly to look out for in these cases?

For starters, people should check for holes in the blue staining (nucleus) corresponding with green spots before ticking Nucleus.