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InertialObservr's profile
〈 Berger | Dillon 〉
〈 Berger | Dillon 〉
〈 Berger | Dillon 〉
@InertialObservr

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〈 Berger | Dillon 〉

@InertialObservr

PhD student of Theoretical Particle Physics @UCIrvine l @NSF Fellow l Physics & Math Animations l Patreon: https://www.patreon.com/inertialobserver …

DC → CA
youtube.com/c/InertialObse…
Joined August 2015

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    1. 𝑳𝒖𝒊𝒔 𝑮. 𝑹𝒆𝒔𝒕𝒓𝒆𝒑𝒐 𝑹𝒊𝒗𝒂𝒔‏ @L_G_R_R 14 Nov 2019
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      Replying to @InertialObservr

      What about 1/(distance)² ?

      2 replies 0 retweets 1 like
    2. 〈 Berger | Dillon 〉‏ @InertialObservr 14 Nov 2019
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      Replying to @L_G_R_R

      that's only true for spherical sources! think about a sound wave .. the reason you place your hands around your mouth is to essentially to change this so that the intensity drops off more slowly

      2 replies 0 retweets 5 likes
    3. Ben Bartlett‏ @bencbartlett 14 Nov 2019
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      Replying to @InertialObservr @L_G_R_R

      Laser intensity drops off as 1/r² if you are far away from the focus of the beam. Gaussian beams follow a hyperbola, so far from the focus, the beam profile has a width w(r) that grows linearly with r, so the average intensity goes as 1/r².pic.twitter.com/zK51vO9Vox

      2 replies 0 retweets 11 likes
    4. Ben Bartlett‏ @bencbartlett 14 Nov 2019
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      Replying to @bencbartlett @InertialObservr @L_G_R_R

      also I think that placing your hand over your mouth / using a megaphone / etc only changes the constant in front of the 1/r² scaling for sound, not the scaling itself

      1 reply 0 retweets 0 likes
    5. 〈 Berger | Dillon 〉‏ @InertialObservr 14 Nov 2019
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      Replying to @bencbartlett @L_G_R_R

      right but i'm talking about the incident intensity, standing 10 yards away cupping my hands would lead to a higher incident intensity

      2 replies 0 retweets 0 likes
    6. Ben Bartlett‏ @bencbartlett 14 Nov 2019
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      Replying to @InertialObservr @L_G_R_R

      yeah, I guess I was confused by "so that the intensity drops off more slowly" I interpreted "drops off more slowly" to mean goes as O(1/r^k) for k<2, not just changing the constant of the intensity, but I guess that's the computer scientist in me being pedantic 😂

      1 reply 0 retweets 1 like
      〈 Berger | Dillon 〉‏ @InertialObservr 14 Nov 2019
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      Replying to @bencbartlett @L_G_R_R

      that's a fair point though .. i can see how that could be confusing

      7:54 PM - 14 Nov 2019
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      • Ben Bartlett
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