The image above is a "coital model" at SSL International's Cambridge Technical Centre. SSL International manufactures Durex condoms. The machine was used in a scientific study published last year by SSL in which they studied why condoms break. From the paper, published in the journal Contraception:
Evidence combined from examining returns, questionnaire responses and the coital model strongly suggests a single predominant mechanism of failure we named "blunt puncture," where the tip of the thrusting male penis progressively stretches one part of the intact condom wall until it ultimately breaks.
CONCLUSIONS: Blunt puncture appears to be the mechanism of breakage responsible for more than 90% of condom breakage not attributable to misuse. Knowledge of the main mechanism of breakage should help develop better user instructions, better test methods and, ultimately, better condoms.
"Male condoms that break in use do so mostly by a "blunt puncture" mechanism." (via NCBIROFL)
In an effort to get more people reading, the New York Public Library set out to take advantage of Instagram’s huge user base. Mother New York designed “Insta Novels” as a way to read entire novels in Instagram Stories. The books feature carefully selected fonts, beautiful animations, and some clever hacks to allow such an […]
Law school grads routinely go to work for crusading nonprofits and even those in private practice do pro bono work, thanks to a widespread understanding that lawyers have a professional duty to work for the public interest -- after all, understanding and navigating the law is a necessary precondition for freedom and fairness.
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We have a theory about those throw blankets that are barely big enough to cover your legs. The only people who seem to make them or use them are grandmothers, and the blankets are only that small because Nana got bored halfway through the sewing job. Look, we’re sure she means well. But if you […]
Remember when the default state of your online presence was anonymity? That’s not so clear-cut anymore, and the worst part is you may not even know who is using your data or what they’re using it for. Small wonder that so many people are choosing to surf through virtual private networks. VPNs filter web access […]