Showing posts with label Video. Show all posts
Showing posts with label Video. Show all posts
JELLYFISH LAKE, PALAU
A little information on Jellyfish Lake…
Jellyfish Lake is located on Eli Malk island in the Republic of Palau. Twelve thousand years ago these jellyfish became trapped in a natural basin on the island when the ocean receded. With no predators amongst them for thousands of years, they evolved into a new species that lost most of their stinging ability as they no longer had to protect themselves. They are pretty much harmless to humans although some people with very sensitive skin may get a minor sting from them. If you are allergic to jellyfish you should wear a wetsuit or protective clothing.
These fascinating creatures survive by sharing a symbiotic relationship with algae that live inside of them. At night, the jellyfish go down to the depths of the lake where the algae feed on nutrients. During the day, the jellyfish come back to the surface and follow the sun across the lake in a massive migration. The algae convert the energy of the sun via photosynthesis into a sugar that feeds the jellyfish.
It is not possible to scuba dive in this lake because the nutrient rich layer at around 50 feet and below contains hydrogen sulphide which is highly toxic to humans. If a scuba diver was to swim in that layer, the toxins would enter the body through the skin and that exposure could be fatal. Snorkeling however, is perfectly safe and if you ever find yourself in Palau one day, you should make your way to this special place. The experience of swimming through millions of jellyfish is quite surreal and Palau is the only place in the world where you can do just that!
Princeton invention delivers 3D sound from ordinary laptop speakers
Edgar Choueiri, a professor of mechanical and aerospace engineering at Princeton University, has developed a way to play true three-dimensional sound recordings over regular loudspeakers, such as those found in televisions and computer laptops.
The technique may one day be used to allow 3D televisions to produce lifelike sound and to help people with certain types of hearing impairments locate noises. Segments of the video above incorporate Choueri's 3D filter to demonstrate the phenomenon.
The filter is designed to work with loudspeakers - not headphones - and can be experienced through standard computer speakers. (Make sure the right and left speakers are on the correct sides.)
The technique may one day be used to allow 3D televisions to produce lifelike sound and to help people with certain types of hearing impairments locate noises. Segments of the video above incorporate Choueri's 3D filter to demonstrate the phenomenon.
The filter is designed to work with loudspeakers - not headphones - and can be experienced through standard computer speakers. (Make sure the right and left speakers are on the correct sides.)
