Doctor Chris shows us the mechanics of how our eyes see. He interviews former Paralympic champion Tim Reddish, who upon switching on his new bionic eye was able to read a clock for the first time in 20 years! We actually get a glimpse into Tim's skull to view the bionic implant. Then, a visit with Professor Robert MacLaren familiarises us with the components of this marvellous piece of technology.
Dr Xand answers Louise's question regarding heat rash. The answer has to do with your blood getting close to your skin's hot surface and irritating it, making it red and itchy. Time to head for the shade, or put on a cold Tshirt.
Dr Xand goes unwashed for three days to prepare three rather unsavoury dishes: armpit, bellybutton, and toe cheese! This bacterial trio of treats takes a while to solidify just like the edible kind of cheese. Why we gather such a horrendous smells whilst going unwashed is explained, along with the actual health benefits of body bacteria. Dr Chris is the unfortunate participant in guessing which of Xand's body parts produced each fromage formation. Fortunately, after the final sniff, no body bag
Shivering is the muscles' attempt to warm up, Dr Xand tells Jemima, who has just come off a wet ride. Shivering gets your muscles shaking and doing the hard work for you so you don't have to go on a run
Dr Chris sends Xand to the university of Bradford to test their snappy new lie detector. Professor Hassan Ugail first asks Xand a series of questions with agreedupon true answers. Now, having set up a picture of Xand's honest profile, the professor questions away whilst Xand answers honestly or otherwise. The conclusion and revelations are fascinating!
Dr Chris answers Benita's question about why we get the stitch with an answer that involves running, eating, and targeted blood distribution.
Dr Xand gets Dr Chris to pedal a unicycle that will produce the energy to get a beaker of water at a constant 37 degrees. This shows the hard work our bodies do to keep us at our ideal core temperature. Then the brothers stage a battle to beat their core body temperatures. Sitting in kiddy swimming pools Chris in ice water, and Xand in hot brings surprising results!
Dr Chris explains to Lucy why we sometimes get pins and needles after lying in a weird position. We're told that cutting off the blood supply to your tingling arm or leg has everything to do with it not to mention the weird signals being sent to your brain by the affected nerve.
Xand jumps up and down on his mini trampoline in the garden. Despite warnings of danger from Chris, Xand stumbles and flies into his brother, who hits the deck and pops a tooth! The doctors show us the proper first aid and then proceed to the elementary school, where they educate young students by reenacting the scenario.
Scott gets glider pilot Brendan Swart to coach and help pilot him today. The coach jokes and reassures Scott at the moment he straps on his parachute. The name of the game is getting into a rising air current. You can always get off the ground with the aid of a winch, or powered Pawnee aircraft.
Duane talks with Patrick Hanna, flight simulator instructor. What Pat does is put the nervous person in touch with a phobia specialist. Next, he holds a session right in a simulated cockpit with full console and controls, and explains just how a big airplane is able to get off the ground. Lastly he gets the client to take a flight in a light aircraft, to prove whether or not they are conquering their phobia. We see Duane also chatting with young future pilots in training, both boys and girls.
Kellyn chats with birdkeeper Jerome Joseph, who tells her about the intelligence and sociability of parrots and cockatoos. We meet 76yearold cockatoo Harry, a bit grumpy, but with great dance moves! We learn about the cockatoos' system for evading predators, and their vital habit of eating clay. Coco the parrot is not only a great mimic, but sings songs she associates with specific people who've sung to her before. At the end, joined by birdkeeper Annie, we get an encore duet of 'Old MacDonald'!
Leela talks to bat conservation and rescue president Madellen Cunningham, who notes that flying foxes can sustain flight for many hours. We hear there are more injuries now to flying foxes bumping into buildings and being hit by cars so Madellen's rescue group, and even some celebrities, have come to their aid.
Alex speaks with education and conservation marketing officer Akane Hatai. We meet a most excellent ambassador for Australian native birds Footloose, a rainbow lorikeet. We hear her backstory of being found near the shops as a sick and abandoned pet baby bird.
A dog named Mya has been trained as a canine researcher to hunt down koala bear poo an effort for scientists to find them as the cuddly animals are notoriously hard to track down. Once found, researchers study them and work to better understand how to protect their environment.
For turtles, gender is decided by the temperature of an egg rather than by genes, which means that turtles are one animal being noticeably effected by climate change. Scientists have noticed an increase in the number of girl turtles being born and are exploring what they can do to slow down this trend and what impact it may have down the line.
Researchers from the University of Melbourne have introduced a group of orangutans to mindstimulating computer games that they hope will keep them sharp while in captivity. By observing the games, they're able to learn more about orangutans and the different techniques and personalities they may possess.
At a loss for words? Expand your vocabulary with these unique terms from some of Australia's 300 Indigenous languages.