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According to the UN, nearly one in three people worldwide live in a country facing a water crisis, and less than five percent of the world lives in a country that has more water today than it did 20 years ago. Lana Mazahreh grew up in Jordan, a state that has experienced absolute water scarcity since 1973, where she learned how to conserve water as soon as she was old enough to learn how to write her name. In this practical talk, she shares three lessons from water-poor countries on how to save water and address what's fast becoming a...

You may be confused about how to make the final decision when you want to find a projector.Yes, the sales will show you the specification of the projector, but it is not easy to understand all of it.To choose 3LCD projector? Or DLPprojector? Or Lcos projector? Or Laser projector?What is your final decision?   To give you the guides more clear, Some Youtube videos below for your reference.Should you buy a projector?https://www.youtube.com/watch?v=l8BlmocCemwWhat to look for when buying a projector?https://www.youtube.com/watch?v=Z9ObNuxBA_U&t=65sHow to choose a home projector?https://www.youtube.com/watch?v=uT6TlX8giEo   If you have any question please contact me by Whatsapp +86 18603058581. Shenzhen ccthook technology...

How Do Plastic 3D Glasses Work? Both the lenses of the 3D glasses and the images on the screen are polarized. This restricts the amount of light that is able to enter your eyes. On screen, there are actually two separate images close to each other. Each eye sees one of the images through lenses with similar polarization to those that are on the screen. This causes the brain to merge the images that you’re seeing through each eye into one 3D image. No matter what type of 3D glasses you use, deceiving the brain to see 3D content is...

What is the difference between active shutter glasses and passive polarized 3D glasses? Active Shutter Glasses: This technology has been adopted by most consumer electronics firms like LG, Samsung, Panasonic, etc. With this technology, an HDTV will display one image to your left eye and one image to your right eye. Since the effective frame rate is halved, these HDTVs need to have double the refresh rate of HDTVs (60 Hz). This is why you will find that all 3D HDTVs have a minimum frame rate of 120 Hz (most have a frame rate around 240 Hz or even 480...

What is 4D? The addition of special effects to a theatrical presentation to create a “fourth dimension” – the sensation of tactile experience: scent, temperature, touch. Examples:Beetles tickle the legs of unsuspecting cinema-goers, the wing beat of a gigantic dragon breezes through the rows of seats and spiders descend from the ceiling.