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  • The reason for red wine headaches is revealed - The Naked Scientists
    It’s all down to a natural “sunscreen” molecule made by red grapes called “quercetin” Professor Andrew Waterhouse is from the University of California Davis Andrew - So I was talking to a winemaker in Napa Valley and he was having trouble with wine headaches and I said, 'you know, I think one possibility is there's a compound in
  • Why does red meat turn white with cooking? | Science Questions
    Red meat contains an iron-rich chemical called "myoglobin" which also changes its shape when it cooks and changes colour from red when it's raw to sort of brownish grey when it's fully cooked If you're cooking red meat, sometimes you get a lovely brown colour on the outside and that really tasty meat smell that always makes you hungry
  • Why do you go red when sunburnt? | Science Questions - The Naked Scientists
    Chris - Would anti-inflammatories, like aspirin, make you feel better if you've got sunburn? Kat - They'll help to relive the pain, and they may help to take the inflammation down, but of course the most sensible thing is don't get sunburnt in the first place
  • Why is gooseberry jam red when gooseberries are green?
    Sarka - This question also really intrigued me My mother often makes jam from green gooseberries and the colour is never red but rather dark yellow or light orange It's a colour change either way Charis - We also had a mixed response on Facebook Jodi Knight thinks it's just the difference in the colour of gooseberry used
  • How large (or small) is a photon? - The Naked Scientists
    This wave-like nature gives us one way to talk about the “size” of a photon: its wavelength Red light has a wavelength of about 700 nanometres (roughly the size of a virus), while X-rays can have wavelengths a thousand times smaller Radio waves, which are still made of photons, can be metres or even kilometres long
  • Why is blood red? | Science Questions - The Naked Scientists
    The reason blood is red is because it's got iron in it If you look down a microscope at blood, what you'll see are thousands of tiny little red cells that are referred to as bi-concave discs If you look at them from the side, they look like a number eight and that's because they've got a thick ring round the edge and a flattened centre, a bit
  • Why red hair increases sun damage | Interviews - The Naked Scientists
    It is well known that redheads with pale skin and freckles are prone to sun damage Now, new research from the Sanger Institute in Hinxton has shown how the gene associated with being a redhead not only increases the risk of developing skin cancer but also makes the tumour grow much faster
  • Why cant he see red or green ink on a whiteboard?
    So that's why it doesn't sound like it's just a simple case of red, green colour blindness Diana - So distinguishing coloured marks from their background shouldn't be a problem What else could be going on? Petroc - Having said that, the green and red pens will be less dark than say, a black or a blue pen would be
  • The Wine Diet: Is Red Wine Good For You? | Interviews
    Chris - Is it just red wine though Roger? Because lots of people say you have to drink red wine, white wine's no good Beer's no good Roger - Well, let me provide you with some evidence Alsace has the lowest longevity in France And it has some of the highest heart disease That's a white wine drinking area Chris - So it is specific to the
  • Does red really make bulls angry? | Science Questions
    That means they can see red, but they can also see many other colours too But, because they are dichromats they would see colours in a similar way to a colour blind person In other words, there's nothing special about red; it's more likely to be that the bull is excited by someone wearing silly, bright clothes, dancing about and flapping





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