2012年1月2日 · I suppose you do get blue flowers, at least on small plants and shrubs, so being sky colored isn't a problem for pollination. Maybe you are just biased towards other types of fruit. While I've eaten "Red Oranges"...

2009年8月2日 · But, well if you think about it, it's kind of a two-sided question, really. First of all, why does any kind of fruit or anything that might be eaten change into a bright red colour and usually that's if it's ripe and ready to go, it's advertising itself to be eaten by a disperser.

2008年1月7日 · Mysterious carbonated orange juice! « Reply #3 on: 12/01/2008 22:29:28 » Yes, this is right - orange and other fruit juices turn "fizzy" after being open for a few days because microbes multiply in the sugar-rich liquid and produce dissolved gases and other chemicals which alter the flavour.

2007年2月8日 · Now I had a pitcher of orange juice one of my children left in a cooler on the porch this had to have been over a month, I don't recall for sure but I think it was frozen from concentrate when I made it for them to take to the creek. they forgot the cooler with the juice and I forgot it was there also. now when I found the jug a child had set ...

2009年9月6日 · If you try to borough through the peel of an orange, you'd have to eat the peel and the peel doesn't taste too good. Limonene is mildly toxic and being organic and unpleasantly tasting as it is, it puts off insects and that's a way that the tree uses of keeping its fruit in good condition.Don - Okay. I find it also in my shower gel.

2012年9月12日 · If someone is drinking directly from the fruit juice carton that could cause the juice to "go off" quicker by contaminating it with microorganisms from their mouth, e.g. yeast. « Last Edit: 12/09/2012 09:55:54 by RD »

Some years ago it was found that a pesticide used on apples was found to be present in the flesh of the fruit to the tune of 4 to 8 parts per million. However, the mathematics of this 'apple scare' showed that you would need to consume 50 apples per day from birth for your entire life for this cancer causing pesticide to put you at risk.

2019年9月5日 · What colour were the dinosaurs? If you have a picture in your head, fresh studies suggest you may need to revise it.

2017年4月25日 · Which also applies to these blue fairy lights being at the short wavelength end of the visible spectrum when blue light hits air molecules it scatters much more than red or green. In contrast, red light at the long wavelength end of the spectrum tends to scatter less continuing along in mostly a straight line, which is why we get red sunsets.

2008年7月7日 · Experiments by George Wald and others showed that rods are more sensitive to the blue area of the spectrum, and are completely insensitive to wavelengths above about 640 nm (red). This fact is responsible for the Purkinje effect, in which blue colors appear more intense relative to reds in darker light, when rods take over as the cells ...