I think the grid is like black mixed with white which creates a gray color, and your eyes try to form that grey color while you are looking at the white in your perivial vision.

I loved it! But the outtakes were not as funny in the video. I also would not want to be the victim in the prank.

That's pretty cool. I like how they made a paper airplane that you control with an I Phone. I wonder what other creations people will create in the future that is easier.

OMG!This is so cool you don't need to buy a super expensive airplane any more that can break in five seconds.

I liked how he can carve fruits into zombies. It must take him along time. I also wish I could have the skills to carve like that but if I tried it would take me like FOREVER!!!