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Tuomenkehrääjäkoi tekee puista aavemaisia
Tuomenkehrääjäkoin toukat ovat kehränneet tuomet monin paikoin harmaaseen seittiin. Näky on ikävä, mutta harvoin tuomelle haitaksi, sanoo Reima Leinonen Kainuun ely-keskuksesta.
Pohjoista napajäätä on Lapin pinta-alan verran vähemmän kuin edellisenä ennätysvuotena
Arktista merijäätä on tällä hetkellä vähemmän kuin koskaan aiemmin kesäkuun lopulla.
Lagrange v. Hamilton
Hello,

When doing a little internet search today on generalized coordinates I stumbled on this document:

http://people.duke.edu/~hpgavin/cee541/LagrangesEqns.pdf

If you are willing, would you be so kind as to open it up and look at the top of (numbered) page 6?

OK, so the very...

Lagrange v. Hamilton
types of counterweights
I have been trying to gather a list of counterweight devices that are designed to do some kind of physical work. I was wondering if anybody could clarify or add to my list?

List:

1. pulley ( simple or compound)
2. lever
3. hydraulic cylinder (with equal dimension cylinder and equal mass on...

types of counterweights
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