how cold does it have to be for snow to stick This is a topic that many people are looking for. g4site.com is a channel providing useful information about learning, life, digital marketing and online courses …. it will help you have an overview and solid multi-faceted knowledge . Today, g4site.com would like to introduce to you How to Survive the Snow and Ice. Following along are instructions in the video below:
Hey folks. Its that time of year. When some of us are hoping for for a winter holiday blanketed in white while others are already sick of dealing with slushy stuff love snow or hate.
It heres a collection of our favorite snow chemistry not just how it forms. But how to deal with it too first up heres how freezing water creates those beautiful delicate flakes of snow and why no two are truly alike a snowflake starts as a dust grain floating in a cloud water vapor in the air sticks to the dust grain and the resulting droplet turns directly into ice crystal faces appear on the frozen droplet. Then a prism forms with six faces and a top and bottom a cavity forms in each prism face.
Because ice grows fastest near the edges faster growth on the corners causes six branches to sprout the lines in each branch are due to ridges and grooves on the surface these six branches form the corners of a hexagon which occurs because the water molecules chemically bond into a hexagonal network. When the temperature cools to minus 13 celsius new growth at the branch. Tips.
Narrows. At minus 14. Side branches sprout on each branch.
Suddenly. The crystal encounters. A quick blast of warmer air followed by cooler air and more side branches sprout.
The crystal gradually warms making the tips long and narrow the crystal encounters even warmer air. Which slows. The growth and widens.
The tips finally this unique and delicate structure falls to the earth along with countless other snowflakes cool right. But what if you really need a winter wonderland. And the weather.
Just isnt cooperating no need to fear we can fake it artificial snow forms the same way as regular snow as long as we can manage to mimic natures exacting conditions to make artificial snow water cooled to just above its freezing point is pumped under high pressure through the nozzles of a snow gun. This thing. Blasts water and nucleating agents.
20 to 30 feet in the air. The tiny nozzles in these snow guns break up the water into a super fine mist and fans or compressed air help keep water particles afloat much longer to make sure they freeze before they hit the ground also the compressed air expands. When released thus dropping its temperature.
Alongside the temperature of the water particles. Another important component to making snow is to make sure that youve got the right combination of temperature and humidity lower humidity means that snow can be formed at higher temperatures with untreated water a temperature of about 18 degrees fahrenheit or about negative. 8 degrees celsius is needed if the temperature isnt cold enough added materials are used for the nucleation just like with real snow.
Nucleating agents are extremely important for artificial snow. So in modern snow guns. There are a lot of different types used including silver iodide or proteins made by special bacteria artificial snow is great for skiing or a bit of fun for the kids.
But what if youre trying to get to work in the morning. Weve got a bunch of life hacks for managing the wintry chill including why kitty litter is your cars new best friend your car is stuck in the snow and cant get any traction on the road kitty litter to the rescue clay kitty litter is super useful in the winter because it helps produce a surface that your tires can catch traction on just throw the kitty litter down in areas. Where your tires are struggling basically.
Whats happening is your car tires cant catch any grip due to either the slipperiness of the snow and ice or from hydroplaning. The slush kitty litter takes on water like a champ including all the excess water created by the friction of your spinning tires. And as it does so it expands eliminating the muck of slush that keeps you going nowhere this offers your tires a regular surface to grab on to hopefully.
Leading to your safe escape if you live anyplace icy enough you know that salt scattered over sidewalks and roads seriously improves. The slippery situation snowstorms can create salt actually changes the freezing point of water heres how it works turns out salt isnt actually about melting. Its all about freezing so the freezing point of pure water rests at 32 degrees fahrenheit or zero degrees celsius when the temperature of water reaches the freezing point its normally free flowing molecules get trapped into organized crystal structures.
This is how ice is formed salt disrupts this process upon hitting water salt breaks up into two ions one sodium and one chloride these two ions then move around and take up space in between water molecules. Pushing them apart. And frustrating their potential links to form ice.
This disruption is called freezing point depression. And so to put this simply. Salt lowers the freezing point of water.
Id like to thank chemistry for keeping me from face planting on the sidewalk. Every morning in january. Thats all for now.
If youd like to learn even more about snow and ice check out the links to the full videos below thanks for watching. And if you can still feel your fingers after this chilly. Compilation use them to hit that subscribe button and switch on notifications to see all our videos each one special as a snowflake well see you next week.
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