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The Weird Science of Tossing Stones Into a Lake

Interoperable writes "Researchers in Spain and the Netherlands add another piece to a centuries-old puzzle in physics: the dynamics of an object falling into water. This common occurrence has a complex anatomy that includes a thin 'crown splash' around the perimeter of the impact, a deep cavity of air following the impactor, and a high, narrow jet of water that results from the collapse of the cavity. The new research, recently published in Physical Review Letters, demonstrates that airflow through the neck of the collapsing cavity reaches supersonic speeds despite low relative pressures between the air in the cavity and ambient pressure. Such an effect has no analogue in aerospace engineering or other sciences because of the highly dynamic nature of the collapsing nozzle structure." It's funny that the APS wants to charge non-subscribers $25 to download what is available for free on the arXiv.

4 of 89 comments (clear)

  1. First Post ?!? by PoorImpulseControl · · Score: -1, Offtopic

    Feels weird hitting the Read More link and seeing nothing.... Creeps me out. I am outta here.

  2. Y'know what's funnier? by Anonymous Coward · · Score: -1, Offtopic

    Rob "CmdrTaco" Malda is a 29-year old white male with a stocky build and a goatee. He responded to my ad to be interviewed for this article wearing only leather pants, leather boots and a leather vest. I could see that both of his nipples were pierced with large-gauge silver rings.

    Questioner: I hope you won't be offended if I ask you to prove to me that you're a nullo. Just so that my readers will know that this isn't a fake.

    CmdrTaco: Sure, no problem. (stands and unbuckles pants and drops them to his ankles, revealing a smooth, shaven crotch with only a thin scar to show where his genitals once were).

    Q: Thank you. That's a remarkable sight.

    (laughs and pulls pants back up). Most people think so.

    Q: What made you decide to become a nullo?

    (pauses). Well, it really wasn't entirely my decision.

    Q: Excuse me?

    The idea wasn't mine. It was my lover's idea.

    Q: Please explain what you mean.

    Okay, it's a long story. You have to understand my relationship with Hemos before you'll know what happened.

    Q: We have plenty of time. Please go on.

    Both of us were into the leather lifestyle when we met through a personal ad. Hemos's ad was very specific: he was looking for someone to completely dominate and modify to his pleasure. In other word, a slave.

    The ad intrigued me. I had been in a number of B&D scenes and also some S&M, but I found them unsatisfying because they were all temporary. After the fun was over, everybody went on with life as usual.

    I was looking for a complete life change. I wanted to meet someone who would be part of my life forever. Someone who would control me and change me at his whim.

    Q: In other words, you're a true masochist.

    Oh yes, no doubt about that. I've always been totally passive in my sexual relationships.

    Anyway, we met and there was instant chemistry. Hemos is about my age and is a complete loser. Our personalities meshed totally. He's very dominant.

    I went back to his place after drinks and had the best sex of my life. That's when I knew I was going to be with Hemos for a long, long time.

    Q: What sort of things did you two do?

    It was very heavy right away. He restrained me and whipped me for quite awhile. He put clamps on my nipples and a ball gag in my mouth. And he hung a ball bag on my sack with some very heavy weights. That bag really bounced around when Hemos fucked me from behind.

    Q: Ouch.

    (laughs) Yeah, no kidding. At first I didn't think I could take the pain, but Hemos worked me through it and after awhile I was flying. I was sorry when it was over.

    Hemos enjoyed it as much as I did. Afterwards he talked about what kind of a commitment I'd have to make if I wanted to stay with him.

    Q: What did he say exactly?

    Well, besides agreeing to be his slave in every way, I'd have to be ready to be modified. To have my body modified.

    Q: Did he explain what he meant by that?

    Not specifically, but I got the general idea. I guessed that something like castration might be part of it.

    Q: How did that make you feel?

    (laughs) I think it would make any guy a little hesitant.

    Q: But it didn't stop you from agreeing to Hemos's terms?

    No it didn't. I was totally hooked on this man. I knew that I was willing to pay any price to be with him.

    Anyway, a few days later I moved in with Hemos. He gave me the rules right away: I'd have to be naked at all times while we were indoors, except for a leather dog collar that I could never take off. I had to keep my balls shaved. And I had to wear a butt plug except when I needed to take a shit or when we were having sex.

    I had to sleep on the floor next to his bed. I ate all my food on the floor, too.

    The next day he took me to a piercing parlor where he had my nipples done, and a Prince Albert put into the head of my cock.

    Q: Heavy stuff.

    Yeah, and it got heavier. He used me as a toilet, pissing in my mouth. I had to lick his asshole clean after he

  3. oh god, I need more coffee... by AresTheImpaler · · Score: 0, Offtopic

    I read the title as "The weird Science of Tossing Salad"

  4. Fluid Dynamics by pipingguy · · Score: -1, Offtopic

    The more important question is: is it better to flush the toilet with the lid closed or with it open? I'm thinking about the quantity of residual feces and urine deposited on my toothbrush.

    In theory, keeping the lid closed may cause an increased air suction effect into the bowl and, as a result, increased atomization of liquid-agitated turds into the bathroom environment as it shoots out from the smaller openings created between the lid and the porcelain.

    Anything that results in less shit in my mouth is OK with me.