me 10. I know the focus. you need to take something like a small transparent boxes with lid, ball and a rubber band. need a box to open it and show it to all. then close the lid and horizontally. and knock on all sides and the second time then knock and 2 circle the ball must penetrate into the box. the secret of the cover, you should not close the hole and the hole to leave the cover is better from top to secure.
And who realties can do the Moebius strip ? I Yes .
I'm 10 years old and these tricks I walked and I walked.
Agliana, I will help you to deal with the focus (no wonder nick HELPER!). See:you take a picture of your friend, for example, and will keep it in front of him. "Your friend" which pictures will be "looking" at you, and if the photo rotate, then "friend" wakes up to look in another direction. Focus: how to make a "friend" who "looks" in the direction "looked" at you (not expanding photo)? It's just. The rotated photo bring to the light bulb, the sun (light) and the other will appear on the other side. Not for that!
I focus not understood
I did not understand the focus of who wrote the computer!
not what panel