Text at http://howfarawayisit.com/documents/
Music free version https://www.youtube.com/playlist?list=PLpH1IDQEoE8SLlaJ6fL_R9wxJYXpsPW-9
In this segment of our “How small is it” video book, we cover the microscopic world.
We start with optical microscopes and take a look at some of the things that you can see with light. We also cover light diffraction and show how it sets a limit on the size of objects we can see.
To understand how we can go further than light can take us by using electrons, we cover wave-particle duality. For that we cover particle momentum and wave interference.
For a closer examination of waves, we show the famous Young Double Slit experiment that illustrates the wave nature of light. We also cover Airy Disks as a wave effect to further illustrate the limits of light microscopes. Then we go deeper into the nature of electromagnetic radiation. Here we show how it is the very nature of empty space with its permittivity and permeability that determines the speed of light in a vacuum.
For the particle nature of light, we cover Blackbody Radiation, the radiation catastrophe and how Planck solved the problem by showing that light is created in integer multiples of a constant now called Planck’s constant. We then cover Einstein’s photo-electric effect that showed that light was absorbed in the same multiples of light quanta. We now call these light quanta photons.
To reconcile these two views of light, we return to Young’s double slit experiment and fire photons one at a time. The interference pattern appears over time. We cover how Louis Broglie extended this wave-particle duality to include electrons and other particles, and calculated the Broglie wavelength. The conclusion is that objects interact at points like a particle, but travel through space as a wave.
We then dig a little deeper into the nature of an electron starting with J.J. Thompson’s discovery using a mass spectrometer. With the electron’s mass known, we calculate its wavelength and find it much smaller than an optical photon’s wavelength. This makes it ideal for breaking through the diffusion limit to see much smaller objects.
We end by covering how a scanning electron microscope works and using it to view very small things - down to a carbon atom!
I love the audio dubbing of the opening narration! Reminds me of the English-dubber Japanese monster movies from the 1960s!
you know that classical music is annoying!
she makes me feel like she's mad at me but pretending to be nice.. wow
Better hold on to those sticks. They don't make them any longer.
David your presentations are awesome my friend....I applaud your efforts Sir. I also do research and have a new atomic model "Electron Flood" that appears to be consistent with Unified fields on my channel.
It accounts for all the CERN particles and up and down spins...!/2 and 1/3 ups and downs etc....I have accelerated light thru a venturi and photoed light and the Bosons and Higgs and leptons. I have the proof. I would like to reference your fabulous work in my presentation...I will add nothing to your statements but I will describe the changes that Electron Flood would create. Again thank you for your efforts..I see the work you put in and the commitment is laudable. I hope you will allow me to use some shots from your work as reference... I would love to discuss if you wish.
What is a nanometer? What
What is a nanometer? What things are measured in nanometers? Is a red blood cell bigger or smaller than a bacteria? This video takes you on an adventure of scale from the macrosize to the microsize to the nanosize!
For more information about this piece: nisenet.org/catalog/media/how_small_nano_video
Education professionals: nisenet.org
Public audiences: whatisnano.org
what's up with all the child molester comments? shit bro...
Could anyone please tell me the name of song?
Yeah right, ten times smaller repeated over and over loses the viewer very quickly.
Perspective based on prior perspective over and over causes on to lose perspective.
i work in a profession where picometers matter..nano matters,too...
Your voice is annoying as hell
In this video we will
In this video we will cover 'How The Universe Is Way Smaller Than You Think'. I watched the video, How the Universe is Way Bigger Than You Think here... https://youtu.be/Iy7NzjCmUf0
And decided to show everyone that the universe is actually quite small (In once sense of the word. haha). Really small.
We start off with one of the largest ancient wonders on earth, mount everest. Then we scale you downwards in the universe by going onto the blue whale, then humans, mosquitos, and fleas. It is around here that we get into micrometers and talk about the width of a human hair.
We try to use as many electron microscopy images as possible to help you visualize what the micro world would look like.
We move onto some things like keratinocytes, skin cells, red blood cells, and bacterial cells and show you the smallest living things on earth.
However, the universe is even smaller than it is big (does that make sense?). So we keep venturing downwards.
We jump into the nano world where we move from micrometers to nanometers. We talk about the wavelength go light, viruses, DNA, transistors, before using picometer to get into specfic atoms like the hydrogen atom, then protons and neutrons.
Eventually we need to use femtometers, attometers, heptometers, and yoctometers to measure things like quarks, preons, and neutrinos.
We lastly touch on quantam foam, the planck length, string theory, and a closing remark.
I hope you enjoy the video!
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This seems legitimate to me.
We Arent bigger In The Whole universe But insects Think we are multiverse Sorry I was thinkung U were taking About that xD sorry man great vedio
Indonesia nani Mee?
This is actually a pretty good video