Tell the mechanism of heat transfer
1) Sunlight shining on earth
2) Ice cube melting in a person’s hand
3) Ocean currents rising and sinking
4) describe one energy transformationn in an electric pencil sharpener
5) Describe one energy transfer in an InFocus projector

I am interested in buying an Optoma HD720X projector but i have a few questions
1. Is it Widescreen?
2. What sort of connections does it have e.g. HDMI, Component AV?
3. Does it have HDMI?
4. Can it display 1080i/p
5. How bright is it?
6. how would i connect it to my PS3 and Laptop (The laptop has DVI [...]

I am just wondering does the Optoma HD720X projector have all the same inputs as its bigger brother (The HD70), also by optoma e.g. HDMI, Headphone jack, ect

I am interested in the Optoma DV10 MovieTime front projector from Circuit City. I have a couple of questions about it…
- I have a Nintendo Wii, Playstation 3, and Adelphia cable box. How do it get it all hooked up to the projector?
- Can I have cable tv playing off this projector?
- I prefer [...]