928 papersfrom a 10 year period 696 of them judged to be about what they actually want to investigateAre there only 696 climate scientists in the world ? What if they write one paper every second year ? then there ' s only 139 climate scientists in the world ? Also that was only done by judging their abstract in a subjective manner . <| sep |> i use dry erase markers for things like this , you need to de grease whatever parts you think are rubbing together then apply some dry erase marker to what you guess the contact points are , make sure its unloaded and cycle it by hand once or twice then open it back up and see if the dry erase has been removed or transferred to another point . cycling once or twice may not be enough but i start with 1 or 2 times and if the dry erase pigment isn ' t changed i give a few more cycles and open it back up and check it again . Oh and i would avoid using Black dry erase markers as a lot of the parts in guns are finished some shade black or blue . most other colors besides yellow or blue should work . i would say that i have had the best luck with red and green .