Wikipedia:Reference desk/Archives/Miscellaneous/2020 May 27

= May 27 =

Calculating "g" forces
If an object traveling at X speed makes a turn of Y radius, how do we calculate the "g" forces it will experience? — Preceding unsigned comment added by 173.228.88.33 (talk) 08:54, 27 May 2020 (UTC)
 * The acceleration is speed squared divided by the radius ($$v^2/r$$ where v = X and r = Y in your notation). See centripetal force. --Wrongfilter (talk) 13:16, 27 May 2020 (UTC)
 * To get the acceleration as a g-force, divide by standard gravity (about $9.8 m/s^{2}$). --Lambiam 13:19, 27 May 2020 (UTC)

Heart-shaped areolas
I watched a porn video on the net and one of the women had heart-shaped areolas instead of round ones. How is that possible? Did it involve plastic surgery or something? J I P &#124; Talk 20:21, 27 May 2020 (UTC)


 * Heart-Shaped Nipples: What You Should Know. --Lambiam 20:48, 27 May 2020 (UTC)


 * It's tattoo ink. Temerarius (talk) 21:36, 27 May 2020 (UTC)


 * The link provided by User:Lambiam above says it can be performed either with an actual skin graft or with tattoo ink. J I P  &#124; Talk 23:27, 27 May 2020 (UTC)


 * Well, sure, it's possible. For example, after a mastectomy/top surgery it's possible to choose the size, shape, and location of your areolas, and whether you want to have them at all. But since the OP was asking about something they saw in a porn video, it's overwhelmingly likely that it was tattooed. OP, did the actor in the video have other tattoos on their body? I'm gonna take a wild guess that they did. Temerarius (talk) 20:32, 28 May 2020 (UTC)


 * No, the woman did not have any other tattoos, and in fact the areolas were even the same colour as normal areolas. I think they were done with surgery. J I P  &#124; Talk 11:48, 30 May 2020 (UTC)


 * The surgeon would have had to be almost impossibly good not to leave noticeable scars around surgically-rendered heart-shaped aureolae. The incision for breast augmentation requiring partial prostheses/implants is normally done under each breast, so that after healing, the resulting scars are normally out of sight on casual examination. My money would be on bleaching or laser ablation of the outlines of the existing contours of each aureole (assuming that the original aureoles were large enough to leave a heart-shaped residuum after bleaching or ablation).  .--loupgarous (talk) 05:52, 31 May 2020 (UTC)


 * Looking at the photo on the Web site posted by User:Lambiam, that was obviously a tattoo of indifferent quality, not one intended to fool the eye of somone who's seen nipples other than their own before. Googling for "heart-shaped nipples" doesn't turn anything else up but increasingly elaborate tattooing of the breast surrounding each nipple.  Thus, my speculation about bleached or laser-ablated nipples (hastening to add, I don't know that any plastic surgeon has either bleached or laser-ablated living nipples).
 * I refer the original poster to our article Body Modification for more information. --loupgarous (talk) 06:24, 31 May 2020 (UTC)
 * The photo in the one-image gallery on that website has the caption, " Heart-shaped tattoo on the nipple – Safer and less expensive than surgery, tattoos have also been used to create heart-shaped nipples." So even without looking, it is obviously a tattoo. When I posted the link, the gallery had many images, some of which were not obviously tattoos. Instead, the page now says, "More images can be found online via Tumblr, Instagram, etc." --Lambiam 08:29, 31 May 2020 (UTC)
 * Doing my scientific due diligence, I google-imaged the subject, and every last one of them appear to be either tattoos or other cosmetics. The obvious next step would be to have an arrow-shaped piercing. ←Baseball Bugs What's up, Doc? carrots→ 09:55, 31 May 2020 (UTC)