Vanishing Point Game Entry Four - Easy Puzzles

So if you register with vanishingpointgame.com and login, it brings you to the screen in the previous post. The first four puzzles are marked as EASY. Here they are:
SUNDIAL:
"USE THE SUN TO TELL TIME" - clue to use the times from the sun in the Vegas video here. By sliding the time through 2:30, 5:00, 12:00, 1:30, 8:00, and 7:00 you get the answer: HELIOS

WATCH SPRINGS:
The spring snaps to the grid pretty easily, the trick is writing down the letters whose center the spring passes through as it winds in: HOW MANY WAVES Remembering the end of the video, there were: FIVE

MANTLE CLOCK:

Time is written upside down and backward....familiar? Its from the video again, remember the word SOLVE? So we take the numbers from that part of the video and put them in: 694+42 = 736 or 7:36, 114+224 = 338 or 3:38. We put these into the clocks by clicking the time we wish to change and then spinning the center hands. I expected something to happen, but then thought of the upside down thing. It looks like BEE GEL upside down. So the answer is: HONEY

GEARS:
Now here's a fun one. You have to arrange all the gears to get all the silver gears to turn the right way. Here's how I did it:After a little animation, you get a note asking you what he wrote about. Who? HG Wells from the video of course. He wrote about: TIME TRAVEL