vivii ૮₍ ˶ᵔ ᵕ ᵔ˶₎ა ♡
@sunshinevvn.bsky.social
let’s go red sox 👏👏 👏👏👏
i know that looking at evenly spaced frames like this gets ruined by spin decay but there’s still definitely reorientation happening on the sinker
November 8, 2025 at 12:33 AM
i know that looking at evenly spaced frames like this gets ruined by spin decay but there’s still definitely reorientation happening on the sinker
skubal sinker
November 8, 2025 at 12:33 AM
skubal sinker
skubal slider
November 8, 2025 at 12:33 AM
skubal slider
the cease looks good for about 3 frames and then starts to lose it
November 7, 2025 at 11:50 PM
the cease looks good for about 3 frames and then starts to lose it
here i grabbed every n frames, with n chosen so that frame 1 and frame 1+n have the same seam orientation. this changeup looks like it’s translating when i move through the pictures
November 7, 2025 at 11:50 PM
here i grabbed every n frames, with n chosen so that frame 1 and frame 1+n have the same seam orientation. this changeup looks like it’s translating when i move through the pictures
cease slider, not so much
November 7, 2025 at 11:50 PM
cease slider, not so much
a secret third source of catch prob that i have puts it at 10%, and while i try my best to factor in the wall properly there’s a fundamental issue due to ball tracking getting funky the farther out from home (and higher above the ground) it gets
i think it hits the wall here and should be a solid 0%
i think it hits the wall here and should be a solid 0%
September 23, 2025 at 10:05 PM
a secret third source of catch prob that i have puts it at 10%, and while i try my best to factor in the wall properly there’s a fundamental issue due to ball tracking getting funky the farther out from home (and higher above the ground) it gets
i think it hits the wall here and should be a solid 0%
i think it hits the wall here and should be a solid 0%
an extremely easy task for a video game developer tbh
May 1, 2025 at 7:04 PM
an extremely easy task for a video game developer tbh
find the fraction of ball flight time the ray cast from the fielder’s head to the ball intersects the lights or the sun and toss it into the formula
May 1, 2025 at 7:03 PM
find the fraction of ball flight time the ray cast from the fielder’s head to the ball intersects the lights or the sun and toss it into the formula
i refuse to believe the TJ is cause of the scrider. i refuse to believe it’s uniquely bad for ur ucl
April 20, 2025 at 11:47 PM
i refuse to believe the TJ is cause of the scrider. i refuse to believe it’s uniquely bad for ur ucl
inb4 someone tells me some relief pitcher i don’t know on like, the giants throws a screwball 10% of the time
April 20, 2025 at 11:40 PM
inb4 someone tells me some relief pitcher i don’t know on like, the giants throws a screwball 10% of the time
posting the “i had code for collision efficiency” image first
March 30, 2025 at 4:21 PM
posting the “i had code for collision efficiency” image first
yes probably. EV-wise (which i should’ve just shown in the first place) it looks more like a simple shift downwards
March 30, 2025 at 4:17 PM
yes probably. EV-wise (which i should’ve just shown in the first place) it looks more like a simple shift downwards
love it!
i calculated the MOI ratio to be in the 98% range, which i think might be able to get you something like 0.5 to 1 mph extra bat speed, approximating it as all circular motion and equal KE.
i calculated the MOI ratio to be in the 98% range, which i think might be able to get you something like 0.5 to 1 mph extra bat speed, approximating it as all circular motion and equal KE.
March 30, 2025 at 4:15 PM
love it!
i calculated the MOI ratio to be in the 98% range, which i think might be able to get you something like 0.5 to 1 mph extra bat speed, approximating it as all circular motion and equal KE.
i calculated the MOI ratio to be in the 98% range, which i think might be able to get you something like 0.5 to 1 mph extra bat speed, approximating it as all circular motion and equal KE.
so something interesting i saw last night is that keeping the max width the same 2.625” but scaling the length of the bat, the EV benefit only appears with the 33” bat
March 30, 2025 at 4:06 PM
so something interesting i saw last night is that keeping the max width the same 2.625” but scaling the length of the bat, the EV benefit only appears with the 33” bat
on twitter someone shared this paper which used a genetic algorithm to search for “optimal designs” in a FEM package. they allowed non circular cross sections which look fun. i haven’t read the paper but i have a hunch these would be very prone to breaking
mdpi-res.com/d_attachment...
mdpi-res.com/d_attachment...
March 30, 2025 at 5:37 AM
on twitter someone shared this paper which used a genetic algorithm to search for “optimal designs” in a FEM package. they allowed non circular cross sections which look fun. i haven’t read the paper but i have a hunch these would be very prone to breaking
mdpi-res.com/d_attachment...
mdpi-res.com/d_attachment...
this bat’s MOI about the COM is 97% that of a normal shaped bat with the same length & mass, 98% around a more realistic axis.
that’s rooughly comparable to changing the mass by 1 oz
that’s rooughly comparable to changing the mass by 1 oz
March 30, 2025 at 5:06 AM
this bat’s MOI about the COM is 97% that of a normal shaped bat with the same length & mass, 98% around a more realistic axis.
that’s rooughly comparable to changing the mass by 1 oz
that’s rooughly comparable to changing the mass by 1 oz
oh that’s a good point. i used the length of the bat to set the scale, which i assumed to be 33” (which was just a guess based of a google search for “jazz chisholm bat”)
doing that i get a max width of 2.8”
32” gives 2.7” and 31” gives 2.63”
so that suggests it’s actually 31”
doing that i get a max width of 2.8”
32” gives 2.7” and 31” gives 2.63”
so that suggests it’s actually 31”
March 30, 2025 at 4:09 AM
oh that’s a good point. i used the length of the bat to set the scale, which i assumed to be 33” (which was just a guess based of a google search for “jazz chisholm bat”)
doing that i get a max width of 2.8”
32” gives 2.7” and 31” gives 2.63”
so that suggests it’s actually 31”
doing that i get a max width of 2.8”
32” gives 2.7” and 31” gives 2.63”
so that suggests it’s actually 31”
i mean, i spent weeks coding a hammer and a golden nail showed up out of nowhere
March 30, 2025 at 1:36 AM
i mean, i spent weeks coding a hammer and a golden nail showed up out of nowhere
i took the profile by counting pixels in this. i assumed 33” and 30 oz. just a guess but being exact isn’t really the point
March 30, 2025 at 12:55 AM
i took the profile by counting pixels in this. i assumed 33” and 30 oz. just a guess but being exact isn’t really the point