“It doesn’t look like a relaxing swim in the warm waters of the Bahamas. But for Vincent Canabal it is all in a days work when it comes to feeding his favourite a 16-foot long Tiger shark Emma. The 34-year-old qualified doctor has been diving with sharks since he was just. His passion has taken him around the world.
He said: “Despite their reputation most sharks are very cautious and reluctant to approach people. The only reason why they are near divers is because we attracted them with a little bit of dog food. The main thing is to always be cautious, swim slowly without splashing and jerky movements”. The seas off the islands are home to Tiger Sharks, Lemon Sharks, Caribbean Reef Sharks, Nurse Sharks, Hammerheads and more”. Barcroft Media via The Daily Mirror Далее
The terrible pun in the title is courtesy of Gizmag, where I learned about this device. Most serious water filters need serious pumping or squeezing or sucking as they try to force the water and all the gunk in it through a relatively small filter.
The Grayl works like a French press coffee maker, increasing the surface area of the filter to the size of the cup, reducing the pressure required significantly. It is one of those ideas that make so much sense. Далее
While it looks like the planet’s surface is covered mostly in water, the fact is there is very little water on this planet when you compare it to the size of the planet as a whole. The USGS created this image to give us a little perspective. USGS states, “About 70 percent of the Earth’s surface is water-covered, and the oceans hold about 96.5 percent of all Earth’s water. But water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. Далее
Tiny spikes of copper, inspired by cactus thorns, have the ability to remove micro-droplets of oil in water, according to Chinese researchers, and could lead to more effective cleanups of oil spills.
The researchers, who noted that the cone-shaped spines of cactus can harvest water from the air and move it to their base due to surface tension and the shape of the spines, emulated that natural design function in a new development using artificial spines made from copper.
Although some advances have been made in oil clean-up technology, the tiny micron-sized droplets of oil remain difficult to remove, and this recent breakthrough could address that issue. Далее
Instead of generating electricity at sea and sending it to shore, a different kind of wave energy device is in the works in Australia, and it promises to deliver not only emissions-free electricity, but also emissions-free desalinated water.
The technology, called CETO after a Greek sea goddess, is being developed by Carnegie Wave Energy Limited, and their upcoming 2MW pilot project near the Perth Wave Energy demo site will be the first wave powered desalination plant in world. Далее