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Getty Images Letter Forum / Re: Getty Images and scented trees update.
« on: May 25, 2012, 10:26:30 PM »... as well as the mechanical patent for the ridges on the edge of the their flying disc design, which cause the air disturbance known as the "Bernoulli effect" ...No. No! The ridges don't cause the Bernoulli effect. Like dimples on a golf ball they trip transition to turbulence and delays prevents flow separation. (Flow separation is often bad. See http://www.aerospaceweb.org/question/aerodynamics/q0215.shtml for golf balls. Separation also causes stalling of airfoils and a number of other things.)
Ok... You may now go back to legal issues.
Lucia, you must be a player! Freestyler? Ultimate? I love anything that has to do with chasing the bee. I can make a frisbee fly much more accurately than a golf ball, that's for sure! In fact, I should sell my clubs and switch to Frisbee golf.
Thanks for the physics lesson, what do I know anyway? I got the wrong impression from reading stuff like this: http://web.mit.edu/womens-ult/www/smite/frisbee_physics.pdf
Anyway, Lucia, getting back to our core topic, I'd like to personally thank you for all the knowledge you've shared with the forum about protecting our server from bad bots. I've set up the trap and have been snagging one every couple of days, at least. The other day I realized I had blocked Copyscape when I tried to use their service to see if a client's site had duplicate content issues. I guess their crawler doesn't have good manners, so they're red-carded unless I need to use the service, at which time I can take down the IP block.
The one thing I'm still doing that's a little primitive is handling the IP blocking manually. I want to check each bot before I block it to make sure I'm not excluding a bot I need. For example, some SEO services like Alexa use crawlers to keep statistics on a server, but usually the ethical vendors warn you about the visits and ask you to whitelist them so they can do their work. That's pretty much asking for permission and I'm good with that.
I'm building up a fairly extensive list of IP numbers. I've been ignoring the user agents because they lie about those all the time anyway. The other day I caught a very rude comment spammer pretending to be a generic IE browser. So rude.
To all new members, search on that Google bar up there for IP blocking or simply for Lucia's posts. There's a great wealth of knowledge. You don't have to let the bandwidth hogs crash into your server — there's a lot you can do to mitigate that problem and in my humble opinion it's worth the time and effort.
P.S. Buddhapi, you're funny. Respect the mighty Frisbee®, it's the ONLY ONE that works!