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Ask the Naked Scientists — Life Sciences
Ask the Naked Scientists

How many organs could you donate and remain alive? How many planet Earths could fit inside the Sun? How high is a giraffe’s blood pressure? Why is the sea blue? To find out, Ask The Naked Scientists!

Copyright: © The Naked Scientists

Latest Episodes:

Counting all the stars in the known universe Jun 24, 2022

Show notes

Consumption of energy in the brain; the role of my adam's apple; seed anatomy; why there are so many planets; body components that suck oxygen from the air; NASA predicts the number of stars in our universe; why do flowers bloom in spring; measuring the milky way; the chemical properties of bromine; pursuing the origns of life; if the moon isn't cheese, what is it made of? Dr Chris Smith joins 567 Cape Talk's Lester Kiewit to talk the answers through... Like this podcast? Please help us by supporting the Naked Scientists

Drinking alcohol as you soak? Jun 17, 2022

Show notes

Soap on the bathroom mirror with a hot shower running; sedatives acting unusually; coffee reduces tiredness but also provides a lick of energy; does a glass of sherry warm you up on a cold night; how do you contract shingles; asian flush; water density experiment for you to try at home; is the conflict in Ukraine speeding up climate change. Dr Chris Smith joins 567 Cape Talk's Lester Kiewit to talk the answers through... Like this podcast? Please help us by supporting the Naked Scientists

DNA fingerprints after an arm transplant! Jun 03, 2022

Show notes

The Platinum Jubilee; aerodynamics and physics of tailgating vehicles; why planets and the moon are all in the same orbital plane; how ants lead their nest-mates to a food source; animal extinction; how light can reveal what something is made of; do transplant recipients inherit genetic diseases from their donors; and would someone with an arm transplant leave a different DNA fingerprint with their new hand? Dr Chris Smith joins 567 Cape Talk's Lester Kiewit to talk the answers through... Like this podcast? Please help us by supporting the Naked Scientists

How do ants breathe? May 28, 2022

Show notes

What are stars made of? How do ants breathe? How does a person catch chickenpox? Why are sunsets and sunrises red? What are planets made of? How many bones in a human body? How do Earthquakes occur? IF the Earth's round, why don't we fall off? Why doesn't sand dissolve? How does a bird fly? This week Lester and Dr Chris are with the kids at the AKA snapshot study group to find out what they want to know... Like this podcast? Please help us by supporting the Naked Scientists

Why do boats have round portholes? May 20, 2022

Show notes

Shortages of cooking oil, risks of being hit by lightning and can lightning travel through your plumbing; why boats have round portholes; what's the memory capacity of a human brain; can we measure happiness; do animals feel happy and sad like we do; what gives farts their unique characteristics, and why do stars twinkle? Lester and Dr Chris have the answers... Like this podcast? Please help us by supporting the Naked Scientists

Why doesn't our own snoring wake us up? May 02, 2022

Show notes

Why do some animals sleep standing up? And do fish sleep? Why are elderly voices higher pitched than younger voices? Why does the outside temperature drop just before the sunrise? Why do I feel pain in my ears during a plane takeoff, and why does chewing gum help? Do cats and dogs recognise their siblings? Why is yawning contagious? Do dogs get depressed? And why doesn't our own snoring wake us up? Dr Chris and Abongile Nzelenzele have the answers... Like this podcast? Please help us by supporting the Naked Scientists

How are some children geniuses? Apr 08, 2022

Show notes

Can trees produce more than 1 type of fruit? Why do some flowers only have a scent at night? What makes fruit taste sweet? How does the Google search engine work? How do motorcycle tyres grip the road? How are some children geniuses? What is myasthenia gravis? What's the difference between a sickness, a disease, an illness, an affliction, a malaise and a disorder? How does reverse swing work on a cricket ball? And how do tides work? Dr Chris Smith and Lester Kiewit have the answers... Like this podcast? Please help us by supporting the Naked Scientists

Will a cold onion make me cry less? Apr 04, 2022

Show notes

Why are humans still born with bits we don't need - will evolution do away with them? Did an onion make me cry less because it was cold from the fridge? Do animals get diabetes like humans do? What is the physics of a rainbow? Where does lightning come from? What did cloning Dolly the Sheep mean for me? And is Covid-19 nature redressing the balance? Dr Chris Smith and Relebogile Mabotja have the answers... Like this podcast? Please help us by supporting the Naked Scientists

Smoking causes cancer but cures salmon?! Mar 18, 2022

Show notes

Nominative determinism; can cold showers ward off coughs and flu; what's von Willebrand's Disease; if smoking causes cancer how does it cure salmon; why can some people roll their tongues; what's "Agent Orange"; in television, how does a green screen work; do crocodiles age more slowly than we do; what is Helicobacter pylori? Chris and Lester have the answers... Like this podcast? Please help us by supporting the Naked Scientists

Full tank or better to drive about half full? Mar 11, 2022

Show notes

Is it better to keep the tank topped up to full, or should I drive around on half empty: what's better for my car and fuel consumption? Why might althletes take an ice bath after exercise? If I go out with wet hair, will I really catch a cold, or is that a myth? Do babies sleep better in a cooler room? What's the difference between an electrical blackout and a brownout? Is the expensive face cream better than the cheaper one? Lester Kiewit and Dr Chris have the answers... Like this podcast? Please help us by supporting the Naked Scientists

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