Advanced Chemistry: How Big is an Atom?
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- เผยแพร่เมื่อ 28 ก.ย. 2024
- How big is an atom? This advanced chemistry video starts with Lee; a one-metre tall boy next to a tree, then zooms in with a magnification of 10 in a series of steps to smaller and smaller objects till we can SEE an individual atom.
On the way we encounter red blood cells, a bacterium, a virus, a DNA molecule, a sugar molecule, and finally a hydrogen atom. Then we delve further to see subatomic particles.
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About Atomic School:
Atomic School supports the teaching of Atomic Theory to primary school & science students .
We provide lesson plans, hands-on classroom resources, demonstration equipment, quizzes and a Teacher's Manual to primary school teachers. Animated videos that clearly explain the scientific ideas supports learning by both teachers and students. As a teacher, you don't have to look anywhere else to implement this program.
Our work has been verified by science education researchers at the University of Southern Queensland, Dr Jenny Donovan and Dr Carole Haeusler, who confirm that primary students are capable of learning much more complex scientific concepts than previously thought, and crucially, that they love it. Students run to class!
The program has been trialed in Australian schools as well as schools in the Philippines, Iran and India. It is conducted as holiday workshops at the Australian Nuclear Science and Technology Organisation, the Queensland Museum as well as the World Science Festival.
It has attracted wide media interest, including TV, radio and print, and the research data has been presented at prestigious American Education Research Association and Australian Science Education Research Association conferences.
Atomic Theory underlies all the other sciences- genetics, electronics, nanotechnology, engineering and astronomy- so an early understanding will set them up for a more successful learning sequence for all their science subjects, and support their mastery of mathematics as well. We also have extension programs that cover Biology, Physics and Astronomy to an equal depth.
About Ian Stuart (Email: ian.douglas.stuart@gmail.com):
The founder of Atomic School, Ian Stuart, taught Chemistry and Physics for 25 years at senior levels before he realized that his 8-year old son, Tom, could understand Atomic Theory at a much deeper level than he expected. After visiting Tom's class at school, he discovered that his peers could also grasp the abstract scientific concepts, as well as apply it usefully to the real world.
Ian then developed a program to teach the advanced concepts of high school Chemistry, Physics and Biology to students 10 years younger than they normally would. He found that this engaged their interest in modern science early, and sustained it through to high school and beyond. It also sets them up for future success in their academic and career paths.
Ian has a Bachelor's Degree in Chemistry from the University of Queensland and a Master's degree in Electrochemistry from the University of Melbourne.
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Video transcript:
In this video we'll first look at smaller and smaller objects in a series of steps. We'll start with this Oak tree which is 10 metres tall. Can you see the boy underneath the tree? We'll call him Lee, and Lee's height is about 1/10th of the tree's. That makes Lee 1 metre tall.
We'll now zoom in using a magnifying power of 10, and that will make Lee's image about the same height as the tree was on the screen before. In this video, we will continue to find smaller and smaller objects and zoom into them in a series of steps, until finally we can see an atom.
Now let's find something about a tenth of Lee's height- the distance between his eyebrows is about right. Let's zoom in to magnify this by 10 so it's bigger on the screen.
This distance must be a tenth of a metre wide. What's a tenth of this distance? - the width of Lee's iris- that's the coloured part of his eye. His iris is a 1/100 of a metre wide. A hundredth of a meter is also called a centimetre.
We're going to show you a trick here. 1/100 is the same as 1/102 because 100 is 102. Scientists often write this as 10-2 . That's like 10 squared, except that the 2 is has a minus in front. This minus is telling us that the squaring is on the bottom of the fraction instead of the top. The cool thing is that it's quicker to write 10-2 than 1/100.
And it gets better. 1/1,000 is the same as 1/103, so it can be shortened to 10-3. Notice that the -3 corresponds to 3 zeros on the bottom of the fraction. [18.2 What's 1 over a million? Hmm, a million has 6 zeros, so it's 10-6.] When there are lots more zeros, it gets a WAY quicker to write it this way.
I love your videos ! You explain things so well and in a very clear organised way that makes it easy to grasp the knowledge. I am just learning the basics of science at 32 and your are my hero !
"This is also called a millimeter." cue epic music!
the timing of music is just. watch this without laughing.hahahaahahhahahaha😂😂😂
Just another great job, Ian! Well done and keep going!!!!!
I wish the music in this video was edited down to the length of a nanometre.
stop music kindly
The electrons are not circling the nuclues of an atom as the planets around our sun. They are standing waves.
Minor correction at 11:10, the atom is not empty space, research is showing that that atom is much more complex than the simple solar system model, it is composed of energy and other of forms of matter that does not interact with light. Great video though, thank you.
Did lee die from the virus?i want a second episode
Friggin cray... No LSD needed here.. Just more of these videos!
6:32 I still cant get used to that way of counting units.
If you take the original measuring logic , the counting goes "units, tens, hundreds" > and on to the next set.
So 10 to -9 should be one thousand (1000) millions (000 000) and not One Billion.
you should get One billion when you exhaust (1 000 000) of millions > 10 to -12 (that is 2 sets of millions together (>one billion).
when you exhaust 2 sets of billions you count one trillion, and so on. (thats how units, tens , hundreds grow up to make the next unit set in the original measuring logic)
Anyway I wanted to know how did you get to measure anyything smaller than an atom in the video?
Ok the resolution depends on the frequency wave, the higher the frequency the more resolution you get. I guess you need a high radiation value to measure small ..... atoms ... passing through the density of the frequency layers of mater to the electron layer you want to measure (because you are using and electron to measure different mater readings at different frequencies).
Still an electron can read only to the resolution of an electron no matter which frecuency you choose (what is the higher frequency value an electron can take?). For smaller particles you need smaller pieces of matter. Maybe thats the reason why the core of the atom is still nearly impossible to get readed.
Btw counting billions and forth using the US counting measure has no logic at all. I bet some scientific papers made that mistake for being also confusing for most people so they decided to go on with that simplified way of counting. Still the correct mathematical and scientific way for counting units is the British version. Now you need to create lots of new names for the units ahead while it wasnt necesary for the british version which was more simple and practical in that logic and grouping criteria (I mean the universe you can name using the Us counting is smaller than the British counting lol :D.)
Thank you
Cue EPIC music everytime your supposed to go WOW, thats a big number- AKA almost every example of exponential notation.. whoooa number much big, epic music, mind blown, take notes!!! :P :D... anyways thanks for a good video and a interesting one none the less! :)
+Ian Stuart Aww thats really cool and cute! Must be really awesome and funny to see! :)
Well your doing a great job conveying your message to people of all ages it seems! Nothing wrong with getting kids hyped about science! I was and have no regrets except a world of wonder and amazement! :)
What about strings???
A Planck length, where time and space meet. Is the smallest. 10 to the -35.
Ian Stuart well your right. Just a unit of measure of shortest possible amount of time or shortest possible length.
Between the femtometer and manometer is the picometer and inbetween the yoctometer and attometer is zeptometer
after the zeptometer is the invizometer
And smaller as a neutrino?
Good video
Quantum foam. that is smaller than neutrino.
awesome
what is the name of the music?
love the music
how cute
That was quite a beautiful video !
It Gave quite an approximate numbers to every negative exponent of 10,
Also, now it'll be easier for me to remember atomic radius of any atom, as i can relate to other sizes !!
Å = 10^-10
1 Å = 100 picometer
For example remembering the Atomic diameter of important elements like Helium (~0.6 Å), Hydrogen (~1 Å), Oxygen (~1 Å) and all the way upto largest Cesium (~6 Å) etc.
Great content but should have been shortened by 1/3 to 1/2. The musical crescendos between scenes are way too long and too loud, although the music itself is not bad. The real drama is in your well researched content which is magnificent. Consider editing out the unnecessary aspects, mix the voice and music more appropriately and you will have a viral video my friend!
wow Robert you are picky
10^-10m is also called angstrom...
DNA has been measured to be about 2nm thick, that means 500,000 strands of DNA placed in parallel would fit in one mm. A mm is approximately the length of this hyphen _
Happy thought experimenting.
The music is largely superfluous.
Excelente video
I agree with Nahida. Thank you Mr. Stuart.
Thank you so much. It was very helpful for me.
+Ian Stuart U do the best Science vids, keep it up!!😀
Behnaz Assadbeigi
you forgot the Planck length!
"Atoms AIN'T coloured"? Careful, your illiteracy is showing.
Thank You. Nice videos , it would be nice if u do from basic and progressively more
damn it i watched this video to see how large a gluon is and they neutrinos.
I'm wondering how many atoms are in a grain of sand?
Lee's not standing. He's riding a scooter.
More informative than grades K - 6.
great vid... thx
Enjoyed the music.