Monday, March 23, 2015

Where does the white go when snow melts?

This week is going to most likely be a collection of favorite posts and requests from my readers. Today's request is from Anne Landefeld, one of my newest Facebook friends. Anne wanted to know where the white goes when snow melts. And this is directly related to why snow is white in the first place, since we all know that water, at least if it's clean, is clear.

We all know what a rainbow looks like and we know that it's created by the white light from the sun being refracted by the raindrops. Some light frequencies bend more than others, which gives the rainbow its curved shape.

Each individual snowflake acts like a prism and bends the light that passes through it. However, because there are so many snowflakes that are clumped together that the light passes around inside the snow and ends up getting refracted so much that none of the colors get absorbed by the snow and it all gets reflected back out to our eyes as white light.


Since there is never any white color in the snow itself, there isn't any white left over when it melts.

I hope that answers your question, Anne!

If anybody else has something they want me to write about, just let me know. And if you have any favorite blog posts you'd like to see again, and updated if needed, let me know that, too.

Interesting days


Today -  https://www.daysoftheyear.com/days/near-miss-day/  There are plenty of movies, I'm sure, about the earth nearly being hit by some massive object from space. And let's not forget our cute little cuddly friends on https://www.daysoftheyear.com/days/puppy-day/ . It's also https://www.daysoftheyear.com/days/melba-toast-day/ Here is an interesting article from Wikipedia about melba toast:

Melba toast is a dry, crisp and thinly sliced toast, often served with soup and salad or topped with either melted cheese or pâté. It is named after Dame Nellie Melba, the stage name of Australian opera singer Helen Porter Mitchell.[1] Its name is thought to date from 1897, when the singer was very ill and it became a staple of her diet.[2] The toast was created for her by chef and fan Auguste Escoffier, who also created the Peach Melba dessert for her. The hotel proprietor César Ritz supposedly named it in a conversation with Escoffier.[3][4]
Melba toast is made by lightly toasting slices of bread under a grill, on both sides. The resulting toast is then sliced laterally. The thin slices are then returned to the grill with the untoasted sides towards the heat source, resulting in toast half the normal thickness.[5] Thus, it can be described as a twice-baked food (see under rusk).
Melba toast is also available commercially, and was at one time given to infants who were teething as a hard food substance on which to chew.
In France, it is referred to as croûtes en dentele.[6]
Tomorrow -  https://www.daysoftheyear.com/days/chocolate-covered-raisins-day/ I know I've said it before, but it never gets old "Goobers or Raisinets?". And it's https://www.daysoftheyear.com/days/tuberculosis-day/ which has fortunately been nearly eradicated in the civilized world, but it is still out there and this day is to help us be aware of that.

Next Monday - https://www.daysoftheyear.com/days/take-a-walk-in-the-park-day/ I've been doing this a lot since I threw out my back about a week and a half ago. And it's https://www.daysoftheyear.com/days/pencil-day/ Where would we be without the pencil? And who wants to play doctor?

April 23 - It's both https://www.daysoftheyear.com/days/english-language-day/ and https://www.daysoftheyear.com/days/talk-like-shakespeare-day/ in honor of the bard's birthday. "To be. Or not to be." There's nothing like curling up in bed, or in front of a warm fire, and celebrating https://www.daysoftheyear.com/days/world-book-night/. And last, but not least, it's https://www.daysoftheyear.com/days/lost-dog-awareness-day/





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