A simple question was asked in the comments section: What is the origin of friction? I assumed this was an easy question to find an answer for, it sounds simple enough, right? WRONG! My head nearly exploded as I researched this question for 20 minutes, then 30 minutes... Read this: Dr Lasse Makkonen, principal scientist at VTT Technical Research Center in Finland has now presented an explanation for the origin of sliding friction between solid objects. Friction originates in nanoscale contacts, as the result of new surface formation. The theory explains the generation of frictional force and frictional heating in dry contact. It can be applied in calculating the friction coefficient of various material combinations. My head just exploded: ...nano-scale contacts...new surface formation...friction coefficient...does Mr. Makkonen know what he's talking about?? I understand that there are equal and opposite forces on EVERYTHING. There are forces against me when I sit, stand, run, sleep, eat and watch my favorite TV show-"The X-Files"! Is it fair to say that whatever I say, think or do are opposed...by teeny-tiny little micro-surfaces on every molecule that acts on and reacts with my body? Okay, I can deal with that...friction vs. gravity. Gravity attracts and friction opposes. Isn't that the story of life? No wonder Mondays are so terrible and Saturdays are so wonderful! It's why my hair can look good one day and terrible the next day! Gravity: It's the force we all know about and think we understand. It keeps our feet firmly on the ground and our world circling the sun. Yet look a little closer, and the certainties start to float away, revealing gravity as the most puzzling and least understood of the four fundamental forces of nature. We can relax and open our minds to wonderful thoughts and ideas on this phenomenon known as gravity. Remember everything you learned when you were eating from your high chair. If you throw your soggy peanut and butter sandwich, it will end up on the floor, every, single, time. If the floor wasn't there, it would fall to the ground, if the ground wasn't there it would fall into the Earth, if the Earth wasn't there, it would fall out into space, in a straight line, at a constant speed until another force is attracted to it and stops its fall....
15 Comments
derpyeedankmemes
11/7/2017 03:34:04 pm
I think I'm the first :D:D:D:D
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Errol
11/7/2017 03:43:16 pm
Yay I am second!!! WHO CARES?????!!! I have to go because MaryGrace is yelling in my ear to not write a paragraph. (totally an exageration) See you later !!!
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MaryGrace
11/7/2017 03:43:56 pm
Hi!! I'm third!! I would be second if Errol didn't get second...
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Mooasu/Sammy
11/7/2017 03:53:45 pm
Yay I’m third!! Happy birthday Seth!! And Mr. sheerer!!! Who likes coding. I know I do. And I wish I was second but Errol took the computer and then MaryGrace go it, I got it last. How are you doing Mrs. Taylor? I know I’m really hiper now!!! I just had a lot of candy!!! Peace Out Peeps!!!!
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Ally B.
11/7/2017 03:54:55 pm
Are we seriously fighting over places😏? JK! Errol I thought that you left because you finished all of your homework 📚?? Nice 👍🏻 job on the blog Mrs.T. I hope 🤞 that in mercury we can step up our game and show that we can act better then we did today! Please I am totally crossing my finger that every body can follow directions the first time and not have you have to repeat yourself over and over again!!
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Ally B.
11/7/2017 03:57:37 pm
COME ON MERCURY WE CAN DO THIS!!!🤑🤑👌🏻👌🏻👌🏻👇🏻👇🏻👇🏻😢😢😅😅🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤳🏼🤞🤞!! Let’s show Mrs.Raylor that we can act better than we did today!!!!!
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Hi I’m forth ben
11/7/2017 04:01:53 pm
Hi I’m fourth by the way Seth owes me twenty one high chews and I jsut finished fableheaven the forth book the dragon sanctuary it was amazing and ❤️ breaking it was sad 😞 if you want a spoiler look at the bottom of the paragraph ok so to continue I’m at my grandmas house 🏡🦃 last time I went to thanksgiving point I saw a ton of chickens and roosters and some Turkies I also saw 2 guanicos witch is a relitive of the llama also last I saw a lot of goers to Gavin is a demon dragon
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Ben
11/7/2017 04:04:48 pm
Nvermind im not forth
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probably Tyler ( but actually Luke)
11/7/2017 04:17:23 pm
wow was that Bill Nye!!!!
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Elayna
11/7/2017 06:03:25 pm
Wow that is so interesting. I never knew all that stuff!
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Loa
11/7/2017 06:27:17 pm
Mrs,Taylor searched it for 20~30min!! I feel so bad right now!
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Sadie
11/7/2017 06:37:49 pm
Good job on the blog today Mrs.Taylor. I didn't know that you liked The X-Files!
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caleb
11/7/2017 06:39:56 pm
sorry im 12th
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elephant
11/8/2017 07:40:20 am
hey errol why are you marygrace and sammy trying to get the computer? did you all go home together? if so, WHY DIDNT YOU INVITE ME!!!!! wow mrs taylor, my head actually exploded!!!!!
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Probably Errol
11/8/2017 07:44:31 am
Grace......we were all at double dosing and there was only 2 computers and Jason had one so I grabbed the other one.......we didn't all go home together.....don't worry. This homework assignment is not very hard but still check them!!!!!!!! Good luck to everyone!!!!!!!!!
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Mrs. TaylorI love science! Everything about the world is interesting and never boring. I love to study plants, animals, insects, and people. My favorite subjects are my students who are the most unique organisms on the planet! Categories |