Inside a heat chamber
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Kreycik had almost everything on his side when he went running on that hot day: he was extremely fit, relatively young and was an experienced runner.
While some people are more vulnerable to heat than others, including the very old and young, no one is immune — not even the world’s top athletes. Many are expressing anxiety as temperatures are forecast to soar past 95 degrees this week in Paris, as the Olympic Games get underway. https://kraken18s.com
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Scientists are still trying to unravel the many ways heat attacks the body. One way they do this is with environmental chambers: rooms where they can test human response to a huge range of temperature and humidity.
CNN visited one such chamber at the University of South Wales in the UK to experience how heat kills, but in a safe and controlled environment.
“We’ll warm you up and things will slowly start to unravel,” warned Damian Bailey, a physiology and biochemistry professor at the university. Bailey uses a plethora of instruments to track vital signs — heart rate, brain blood flow and skin temperature — while subjects are at rest or doing light exercise on a bike.
The room starts at a comfortable 73 degrees Fahrenheit but ramps up to 104. Then scientists hit their subjects with extreme humidity, shooting from a dry 20% to an oppressive 85%.
“That’s the killer,” Bailey said, “it’s the humidity you cannot acclimatize to.”
Why a rare image of one of Malaysia’s last tigers is giving conservationists hope
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Emmanuel Rondeau has photographed tigers across Asia for the past decade, from the remotest recesses of Siberia to the pristine valleys of Bhutan. But when he set out to photograph the tigers in the ancient rainforests of Malaysia, he had his doubts.
“We were really not sure that this was going to work,” says the French wildlife photographer. That’s because the country has just 150 tigers left, hidden across tens of thousands of square kilometers of dense rainforest.
“Tiger numbers in Malaysia have been going down, down, down, at an alarming rate,” says Rondeau. In the 1950s, Malaysia had around 3,000 tigers, but a combination of habitat loss, a decline in prey, and poaching decimated the population. By 2010, there were just 500 left, according to WWF, and the number has continued to fall.
The Malayan tiger is a subspecies native to Peninsular Malaysia, and it’s the smallest of the tiger subspecies in Southeast Asia.
“We are in this moment where, if things suddenly go bad, in five years the Malayan tiger could be a figure of the past, and it goes into the history books,” Rondeau adds.
Determined not to let that happen, Rondeau joined forces with WWF-Malaysia last year to profile the elusive big cat and put a face to the nation’s conservation work.
It took 12 weeks of preparations, eight cameras, 300 pounds of equipment, five months of patient photography and countless miles trekked through the 117,500-hectare Royal Belum State Park… but finally, in November, Rondeau got the shot that he hopes can inspire the next generation of conservationists.