19 Jul 10
1 edit
Originally posted by Grampy BobbyYes, a center board pawn mate is nice and I have done it. Bishops, because Fischer said so.
Two and a half questions: You ever experience the joy of a center board mate
with a pawn and do you generally prefer bishops to knights (and, if so, why)?
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19 Jul 10
1 edit
When attaching a helium leak checker to the beamline vacuum system of an ion implanter, make sure the main valve to the leak checker is closed before venting the beamline. You will cause all kinds of problems with the leak checker if it has a sudden inrush of air. You also need to close the roughing valve also, otherwise roughing pump oil will be sucked up into the vacuum manifold, causing a nasty cleanup situation.
Just in case you ever have to do that, of course.
20 Jul 10
Originally posted by pawnhandlerI like that. In my industry we are very technical and highly regulated. What you have mentioned falls right in line with what we do. We learn from each other. Some are better teachers than others and we all have our areas of expertise.
An excellent book I'm reading this summer is called Teach Like A Champion, by Doug Lemov. Rather than make up stuff and then claim it will do wonders, he observed excellent teachers, video taped them, and wrote down what they did. Some of his 49 techniques are already a standard part of my school, but the very first one in the book is new to me and yet ...[text shortened]... y they get it that participation is mandatory, and participation is the first step to success.
In the end it is always done "by the book". But often guidance with the available technical manuals is needed. Don't be afraid to say "I don't have the answer". Have the courage to say "I know that I can find the answer".
Very nice PH!
20 Jul 10
Originally posted by sonhouseNifty, are you making some DRAM?
When attaching a helium leak checker to the beamline vacuum system of an ion implanter, make sure the main valve to the leak checker is closed before venting the beamline. You will cause all kinds of problems with the leak checker if it has a sudden inrush of air. You also need to close the roughing valve also, otherwise roughing pump oil will be sucked up ...[text shortened]... nifold, causing a nasty cleanup situation.
Just in case you ever have to do that, of course.
20 Jul 10
Originally posted by sonhouseI once saw a guy splice in a rheostat to compensate for the static induction.
When attaching a helium leak checker to the beamline vacuum system of an ion implanter, make sure the main valve to the leak checker is closed before venting the beamline. You will cause all kinds of problems with the leak checker if it has a sudden inrush of air. You also need to close the roughing valve also, otherwise roughing pump oil will be sucked up ...[text shortened]... nifold, causing a nasty cleanup situation.
Just in case you ever have to do that, of course.
I don't have to tell you what happened next.
20 Jul 10
Originally posted by avalanchethecatAC, please help all of us foreigners to understand what makes marmite edible and enables
If you put some marmite on a hard surface and hit it repeatedly with the back of a spoon, eventually it turns white. Just one of the many ways archaeologists amuse themselves when it's too wet to dig.
it to hold its appeal... even though not marketed, distributed or readily available worldwide.
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