wow, this is outstanding, as a respiratory therapist for 32 years and pre-med I love anything Harvard school of medical school give out for free. Stephen Harrison is outstanding. I would love to go to Harvard but I not going to rule out Morehouse and Meharry Medical college
Understanding that viruses are extracellular organelles is the history of how people used to learn that other people weren't whole people. Viruses and molecules have symmetry, but cells and organism's are asymmetrical. All life starts asymmetrical, yet all life seeks to create symmetry in its local environment. This ties back to Chris Cramer's statements that the entropy of the universe is always increasing, but we can locally decrease the entropy in places.
We have a few rules in physics, but emergence rules everywhere, we go through simplicity to extreme complexity in just a few steps, complexity grows exponentially the closer we look the more it increases.
When you talk about shapes, objects, symmetry, geometry, axis, subunits, folds etc. you lose the audience without explaining what it is or showing illustrations, diagrams etc. what, why, when, how are missing or difficult to visualize to understand what you are talking about...
I am not sure about the assumed knowledge or education level of your audience to understand this lecture. Unfortunately, It is not explained clearly...
Right. This was my first introduction to biology in general and viruses in particular. I am a political scientist and I do not understand this. Back to basics first.
You need to get engineers in here. I bet they could learn and explain it more clearly. This is great but I am struggling to understand. I am not sure that I am getting the right ideas ...
Just showing a microscope plate, then same under an electron microscope, then the same in a simulation, will do more to squash life taking bad information, than any appeal to reason. Drown the internet in more good info, like this, please!
If they've never isolated and purified a virus by now, they never will. All they can do is their tissue culture pseudoscience which is easily refuted with controls.
How do those shapes evolve? Evolution is usually a series of small changes, each of which is advantageous in its own right. So how does one go from a helix to an icosahedron, for example?
@@patldennis I'm talking about the symmetry of the virus. Some have a helical symmetry as he describes here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-KoJWuWzVgqQ.html
I am impressed, as a physical scientist, by the amount of stuff doctors must commit to memory. How boring! I am happy I did not study medicine as my mother wished.
zuhair jumaah 'Incomprehensible' (impossible to understand)or as you state 'uncomprehensive' (lacking in content)? And in the former case: did you add the comment for your own use? Merely curious.
