4 ms·

Do you come from a parallel universe with an extra spatial dimension

by mhh__ 4y ago

defrost 4y ago
Fluorescence is spectrum shifted retransmission. Energy arrives on some wavelengths, it departs on others. "Three spatial dimensions" Vs. "Four spatial dimensions" is suggesting the existence of a further spatial dimension orthogonal to our own and is a bit fanciful, however ... It's legit to look at the evolution of analytic forms from 2 to 3 to 4 to higher (N) dimensions not just for the fun of abstraction but also for the application to phase spaces [1] .. where systems are described using multiple independent orthoganl dimensions to plot the system state at any time and the transitions from one state to another. I see no issue with looking at energy transposition through phase space, and there are applications. [1] https://en.wikipedia.org/wiki/Phase_space https://en.wikipedia.org/wiki/Phase_space
- samplatt 4y ago
  Man, I gotta try reading the harder Greg Egan novels again. I'm fine with the biological and even some of the topographical stuff, but when he starts basing character development on actually visualising shifting through orthogonal dimensions like what you're talking about, my brain just exits via my arsehole and I give up.
  - defrost 4y ago
    Greg Egan, Matt Parker, myself, and a slew of others (eg [1]) all attended math and physics classes in what some astronaut called the city of lights and the most isolated city in the world ... [1] https://www.youtube.com/watch?v=laKp1XeEF74 https://www.youtube.com/watch?v=laKp1XeEF74 some of us also appeared in a film with Nicole Kidman
    - samplatt 4y ago
      As a WA-native I was aware Egan was from Perth, and though my respect for his desire for privacy always wins out over the cult-of-personality, I'm still kinda chuffed I live in the same remote city as a favourite author. (And, though I adore the poetry, I believe Perth (to Adelaide, 2131km) is beaten in isolation by Wellington (to Sydney, 2225km).) I'm stunned and baffled as to what the Nicole Kidman movie could be though; unless you're talking about the character Matthew Parker? I hope you're not also a celebrity Mr/Mrs defrost as I confess I've no idea who you could be :S
jti107 4y ago
seems like they are looking in multiple bands hence the 4 spatial dimensions "Our approach differs from previous work by combining 3D and spectral super-resolution simultaneously with readily available fluorochromes as well as operating in a wavelength range where biological autofluorescence is minimised." https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3105105/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3105105/
- dekhn 4y ago
  No, 4D space. Like, you can go forward and back, left and right, up and down, and yimlo and olmiy. We don't have yimlo and olmiy here but I'm sure somebody in 4-space is reading a copy of "Flatland" right now. The problem wouldn't make sense if you're treating wavelengths as dimensions (and is a far easier problem).
dekhn 4y ago
Well, this projection of me does.

Do you come from a parallel universe with an extra spatial dimension

by mhh__ 4y ago

Do you come from a parallel universe with an extra spatial dimension

Fluorescence is spectrum shifted retransmission. Energy arrives on some wavelengths, it departs on others. "Three spatial dimensions" Vs. "Four spatial dimensions" is suggesting the existence of a further spatial dimension orthogonal to our own and is a bit fanciful, however ... It's legit to look at the evolution of analytic forms from 2 to 3 to 4 to higher (N) dimensions not just for the fun of abstraction but also for the application to phase spaces [1] .. where systems are described using multiple independent orthoganl dimensions to plot the system state at any time and the transitions from one state to another. I see no issue with looking at energy transposition through phase space, and there are applications. [1] https://en.wikipedia.org/wiki/Phase_space https://en.wikipedia.org/wiki/Phase_space

samplatt 4y ago
Man, I gotta try reading the harder Greg Egan novels again. I'm fine with the biological and even some of the topographical stuff, but when he starts basing character development on actually visualising shifting through orthogonal dimensions like what you're talking about, my brain just exits via my arsehole and I give up.
- defrost 4y ago
  Greg Egan, Matt Parker, myself, and a slew of others (eg [1]) all attended math and physics classes in what some astronaut called the city of lights and the most isolated city in the world ... [1] https://www.youtube.com/watch?v=laKp1XeEF74 https://www.youtube.com/watch?v=laKp1XeEF74 some of us also appeared in a film with Nicole Kidman
  - samplatt 4y ago
    As a WA-native I was aware Egan was from Perth, and though my respect for his desire for privacy always wins out over the cult-of-personality, I'm still kinda chuffed I live in the same remote city as a favourite author. (And, though I adore the poetry, I believe Perth (to Adelaide, 2131km) is beaten in isolation by Wellington (to Sydney, 2225km).) I'm stunned and baffled as to what the Nicole Kidman movie could be though; unless you're talking about the character Matthew Parker? I hope you're not also a celebrity Mr/Mrs defrost as I confess I've no idea who you could be :S

jti107 4y ago

seems like they are looking in multiple bands hence the 4 spatial dimensions "Our approach differs from previous work by combining 3D and spectral super-resolution simultaneously with readily available fluorochromes as well as operating in a wavelength range where biological autofluorescence is minimised." https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3105105/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3105105/

dekhn 4y ago
No, 4D space. Like, you can go forward and back, left and right, up and down, and yimlo and olmiy. We don't have yimlo and olmiy here but I'm sure somebody in 4-space is reading a copy of "Flatland" right now. The problem wouldn't make sense if you're treating wavelengths as dimensions (and is a far easier problem).

dekhn 4y ago

Well, this projection of me does.