   Ever wanted to see a tooth at 5,000,000X?
  Now you can. Check out these amazing videos showing extreme close up starting from a macro shot and then zooming in to electron microscope resolution. Any ideas on exactly how they accomplished this? They must be doing some blending to make the transitions between levels of detail, right? I can't imagine an electron microscope can have this large a range of zooming ability. Regardless, they are totally captivating.LinkBTW I know this sucks but you have to have RealPlayer to view these. I had been avoiding it for so long but I downloaded it just to view these and it was totally worth it.  ATS[edited by - Superpig on February 10, 2004 8:19:37 PM]
Teh Link Is Betar "Sneftel is correct, if rather vulgar." --Flarelocke [edited by - sneftel on February 10, 2004 8:13:57 PM];quote:Original post by drewslater  Any ideas on exactly how they accomplished this? They must be doing some blending to make the transitions between levels of detail, right? I can''t imagine an electron microscope can have this large a range of zooming ability. Why not? I´m more a theoretical physicist so in case you know technical problems that prevent it from being able to zoom to any resolution (up to the maximum res of course) you might want to tell me but in case you don´t know how an (rasterizing) electron microscope works, I´ll try to give an overview about it:- You have a very thin electron beam travelling in a uniform direction.- The direction of the electron beam can be slightly altered by applying a perpendicular electrical field E to it like in a TV.- By chosing the correct E(P) you can target the electron beam on any Point P on the target surface.- when the electron beam hits the surface it interacts with the material. The electrons can be back-scattered (BSE) or can release secondary electrons (SE) from the material.- you count the electrons in a detector. The number of electrons counted give you information about the point P you were targeting at. The more BSE you count the higher the number of protons in the target atoms are. The more SE you have, the more surface the beam was put on (surface is "rough", surface is not perpendicular to the beam). Other effects also occur.- With any of these informations of a number of Points you create a picture.note:- actually you usually don´t chose single points but a square on the surface so that (also like in a TV) you just have to adjust E(P) = (Ex, Ey) in the range (-Emax < Ex < Emax, -Emax < Ey < Emax). By lowering Emax you will scan a smaller square thus achieving a greater zoom-factor.btw.: I didn´t want to install real player so I didn´t actually watch the movie.;quote:Original post by drewslater  They must be doing some blending to make the transitions between levels of detail, right? I can''t imagine an electron microscope can have this large a range of zooming ability.Not to mention being able to switch from visible light to scattered electrons. They blended it, from various shots at different zoom factors.;  Electron microscopes don''t get color images, so they most certainly blended it.  Also, watch the one with the tree and it''s obvious they blended it in places.   ;  i refuse to download real player   ______________________________________________________________"It takes all kinds."   -Adam CarollaMy Site;quote:Original post by Atheist  quote:Original post by drewslater   Any ideas on exactly how they accomplished this? They must be doing some blending to make the transitions between levels of detail, right? I can''t imagine an electron microscope can have this large a range of zooming ability. Why not? I´m more a theoretical physicist so in case you know technical problems that prevent it from being able to zoom to any resolution (up to the maximum res of course) you might want to tell me but in case you don´t know how an (rasterizing) electron microscope works, I´ll try to give an overview about it:- You have a very thin electron beam travelling in a uniform direction.- The direction of the electron beam can be slightly altered by applying a perpendicular electrical field E to it like in a TV.- By chosing the correct E(P) you can target the electron beam on any Point P on the target surface.- when the electron beam hits the surface it interacts with the material. The electrons can be back-scattered (BSE) or can release secondary electrons (SE) from the material.- you count the electrons in a detector. The number of electrons counted give you information about the point P you were targeting at. The more BSE you count the higher the number of protons in the target atoms are. The more SE you have, the more surface the beam was put on (surface is "rough", surface is not perpendicular to the beam). Other effects also occur.- With any of these informations of a number of Points you create a picture.note:- actually you usually don´t chose single points but a square on the surface so that (also like in a TV) you just have to adjust E(P) = (Ex, Ey) in the range (-Emax < Ex < Emax, -Emax < Ey < Emax). By lowering Emax you will scan a smaller square thus achieving a greater zoom-factor.btw.: I didn´t want to install real player so I didn´t actually watch the movie. Neat, thanks for posting that - I had always wondered how an electron microscope worked!;  Now we need a useable particle smaller than an electron for better resolution.  Wouldnt it be cool to see electrons on atoms. ;  Gah, the framerate is shoddy and jerky.Not nice on the eyes ;-)How about something truly worth watching?DooM³ Trailer(Requires QuickTime) ;quote:Original post by mink_trapper  i refuse to download real player   I complete agree with that. People using RealPlayer should be shot.Toolmaker -Earth is 98% full. Please delete anybody you can. 