Quote:
Originally Posted by DavidU
When I was younger I destroyed my folks garage in one big hydrogen blast.
I had made about 2 cubic meters of hydrogen. 
I won't explain how due to safety concerns.
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holy crap!
Quote:
Originally Posted by DavidU
My 150mm refractor hit's concrete !
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Even bigger HOLY CRAP!!!
Well, I got me own story.... I was trying to collimate my M500 Mak at 3am the other day (no success) with the EQ5 setup in alt-az mode. Then suddenly the scope spins 180º in altitude at breakneck speed almost catapulting my 8mm Vixen LWV to the concrete. THe diagnal and EP ended up facing the concrete during this episode, with teh tube assembly upside down, but luckily I had both tightened up as good as I could get it.