Why do we get wrinkles when we're wet Explainer Newsround 01:32 斯嘉丽-少年体操明星 Meet Great Britain's Junior Gymnastics star Scarlett 02:28 Morph Animated character features in accessible art trail around London 03:26 新50便士硬币纪念"疾风号"日Windrush Day 2023 New 50p coin released ...
Only when we visit their areas,do we find that those stories are something wrong.One thing you may find out is that there are problems all over the world. We can't just getmoney to send to these areas and hope that will work them out. The world should get involved(干预)and help ...
We've all been there – chopping an onion for a recipe and suddenly our eyes are watering, and we're sniffling like we've just seen the saddest movie ever. It's a ubiquitous kitchen conundrum. But why do onions, in particular, cause this reaction? The answer lies in a complex chemica...
Why do onions make your eyes burn? Onions make your eyes burn for the same reason they make you cry: thanks to the combination of that chemical compound and the enzyme that synthesize when an onion is cut. This creates syn-propanethial-S-oxide, a volatile gas that makes your eyes burn ...
Why do dogs sniff everything? Why do dogs bark when their owner leaves? Why are dogs great companions? Why are dogs so loving and affectionate? Why do dogs bark at some people and not others? Why do dogs beg? Why do dogs nibble? Why do dogs make people happy? Why do dogs like dog...
When they walked down the street, his mum said, "John, do you see thein Mr. Butler's garden? Would you like to sniff(嗅)them? "",said John. "But I want to. Come with me", His mum sniffed the flowers. "Oh, these flowersme my son should(应该)be happy, and they also tell me...
Not that there's ever a convenient time to get sick, but when you notice a cold coming on in the thick of summer, it's arguably the worst. Suddenly, your beach vacation is spent sniffling and coughing inside, wondering if you have a fever or the air-conditioning is just getting to ...
buy what we want, and have a little fun; I'm sure we work hard enough to earn it," cried Jo, examining the heels of her shoes in a gentlemanly manner. "I know I do-teaching those tiresome children nearly all day when I am longing to enjoy myself at ...
caress the fabric. “This feels so good—it’s a beautiful piece of fabric. I would say it’s a thirteen-and-a-half- or fourteen-ounce denim; it’s all cotton, three-by-one right-hand twill.” She takes a pause to sniff. “Doesn’t smell like indigo anymore—that’s too bad....
Smell begins when airborne molecules stimulate olfactory receptor cells. If a substance is somewhat volatile (that is, if it easily turns into a gas), it will give off molecules, or odorants. Nonvolatile materials like steel do not have a smell. Temperature and humidity affect odor because th...