Australia, 11 January 2021: Entries are now open for the Underwater Tour Awards 2021. We have added two new awards this year to include not just photographers, but also creatives and eco-citizens everywhere.
Guru Awards These awards feature five Categories, a publicly-voted People’s Choice prize, plus the ultimate prize for the top-scoring photographer across all the categories, the Grand Guru prize!
Researchers have known that an animal swimming parallel to a solid surface receive a subsequent boost in performance, thus allowing them to utilise less energy when moving around.
Studies have quantified this into a 25 percent increase in speed and a 45 percent increase in thrust when swimming near a solid surface.
However, the jellyfish does not swim near the seafloor or seawalls. How does it get named the "world's most efficient swimmer"?
Apparently, it does so by creating a "virtual wall."
Because DCS isn’t the most straightforward diving injury, myths and misconceptions about it tend to arise. DAN is committed to continually educating divers about it, and we’ve decided to clarify a few of the most common misconceptions about it to ensure that all divers are better able to recognize DCS, respond to it and get the treatment they need in time.
While the most exotic of these potentially dangerous organisms are fairly well known, the more mundane sometimes cause uncertainty. Know what’s most likely to cause an injury on your next dive so you can relax and enjoy making bubbles.
In part one of this two-part series we’ll refresh your knowledge of wound care and treating common marine stings; next month we’ll cover injuries that involve scrapes, bites and penetrating wounds.
Interest among researchers has existed for a few decades, but it has increased in recent years as studies by such organizations as Duke University the University of South Florida have yielded intriguing results.
A recent big-data study performed by a DAN Europe research team used modern statistical analysis techniques to dig into a sample of nearly 40,000 open-circuit recreation dives and look for patterns and clues about DCS risk factors in real-world cases. Some of what they’ve found confirms our previous knowledge and opens entirely new avenues for research into the factors that contribute to DCS risk. Here’s what we’ve learned.
The more difficult a wreck is to get to, the more rewarding its discovery, but also the more likely it is that you’ll run into trouble during or after your dive. Challenges become hazards quickly, and many offshore adventures are rife with risk factors that make it more likely that you’ll surface from your dive without a boat in sight.
Whether your charter sprung a leak and became a new dive site or drifted off in search of another diver here’s what you need to know to survive.
Checking your air a few times during a dive and coming up as the gauge nears zero is not dive planning. Before you hit the water this summer, brush up on the basics of gas management — this will help keep you safe and might even extend your bottom time.
DĂĽsseldorf, Germany
We asked our contributors what their favorite marine mammal dive was and they sent us tales and images of magnificent whales, playful seals, endearing sea cows and curious dolphins.
Inspired by this, the engineers at Rutgers University–New Brunswick have developed a 3D-printed smart gel that changes shape when exposed to light, as well as a 3D-printed stretchy material that can reveal colours when the light changes.
A paper on the research has been published in the journal ACS Applied Materials & Interfaces.
