This week, how did birds dodge the dinosaur apocalypse? Why does my rug climb the wall? How can we make a country richer? What does Earth look like inside? Is Covid-19 a conspiracy? Where did viruses come from in the first place? And will lockdown produce a baby boom? Join Dr Chris and Kieno Kammies for the answers... Like this podcast? Please help us by supporting the Naked Scientists

What is Covid-19? Are masks worth wearing to protect against coronavirus infection? How does flu compare with coronavirus infection? Do gloves help prevent Covid infection? Are viruses alive? Will ozone kill coronaviruses on my shopping? How does menthol clear nasal passages? And what happens if you catch coronavirus while pregnant? Join Dr Chris Smith and Talk Radio 702's Gushwell Brooks to find out! Like this podcast? Please help us by supporting the Naked Scientists

Why are people stockpiling? Why does no one remind people not to smoke? Why are some songs music to my ears but a cacophony for others? What determines the rate of radioactive decay? Is COVID-19 an experiment in biowarfare? Can hair carry coronaviruses? Can chloroquine combat coronavirus infection? Once I've recovered from coronavirus infection, am I immune? And will Dettol deactivate coronaviruses? Chris Smith and Jeremy van Wyk answer your science questions... Like this podcast? Please help us by supporting the Naked Scientists

Coronavirus conundrum: how best to block to the spread of the virus. Also, we discuss insect and spider bites, why plastic is such a problem for the oceans, the Mpemba effect - why hot water might freeze faster than cold water - and whether vitamins and supplements can boost your immune system... Like this podcast? Please help us by supporting the Naked Scientists

Do blood groups affect mosquito preference for who they bite? What else do mosquitoes eat when they are not drinking blood? What is anger? How do blood groups work? Why do things like smoke and dirt seem to preferentially aim for our eyes? Is wildlife thriving around Chernobyl? And how far aloft is the sky blue? Join Kieno Kammies and Dr Chris Smith for the answers... Like this podcast? Please help us by supporting the Naked Scientists

This week, we answer Paul's question about the size of a diamond you could make with the carbon in a piece of coal, we discuss where butterflies in your stomach come from, discuss the basis of gut instinct, and ask how much magnesium you need and how the body absorbs it. Join 567 CapeTalk's Kieno Kammies and Dr Chris Smith to find out... Like this podcast? Please help us by supporting the Naked Scientists

Data on the Chinese emerging coronavirus and did it come from pangolins? Why does glassware look more shiny when wet? How does the body fight off viral infections? And what happens when you freeze breast milk? Talk Radio 702's Azania Mosaka and Dr Chris team up to Ask the Scientist! Like this podcast? Please help us by supporting the Naked Scientists

What's the latest on the coronavirus situation? Do facemasks protect against viruses? Can we use nuclear bombs to combat climate change? Are artificial diamonds valuable? How long do viruses persist in the environment? What is WiFi sensitivity? Why does the Sun resemble popcorn in photographs? And why can I hear my sonic pest repeller? Dr Chris and 567 Cape Talk's Lester Kiewit for the answers... Like this podcast? Please help us by supporting the Naked Scientists

This week, what's the resolution of the human eye? Would nanobots be attacked by our immune systems? How small would a squash ball lump of coal be if you squished it into a diamond? Why do propellers look like they change speed, or even go backwards? And why do men's hairlines recede? Plus in the news, what's happening with this new coronavirus in China? Dr Chris chats with Kieno Kammies... Like this podcast? Please help us by supporting the Naked Scientists

This week, why only one bottle of water froze while others remained liquid; do hot drinks cool you down? What's phlegm and is it safe to swallow? Is human body temperature changing? How did the NASA student intern discover an exoplanet? Are fizzy drinks safe for diverticular disease? And what's the ideal healthy diet for a human? Join Dr Chris and Kieno Kammies to find out... Like this podcast? Please help us by supporting the Naked Scientists