i guess i need to install a new Anti virus program then

be on the safe side and all

well, if its the foam i think it is, its Styrofoan, which is not squishy, as if to say it will compress but not spring back up

thanks, it is meant to shoot tennis balls, our object was to hit a target 10m away. We hit the closest at just 1in from the center.

well, u see, some of the hardware came from a broken scope that was given to us as payment for the 16" my dad built. So, the mirror came from a meade Dob. I have read how to grind mirrors and it looks so delicate i would be afraid to do it. I was told that this mirror was ~$250, but i dont know how ...

ok, so us at spudfiles have a possibility for an awesome collaboration with kent state university tuscarawas campus. they created "Cyber clubs" in five area schools, these clubs focus on engineering, and we have gone on trips to engineering stuff. My cyber club adviser approached me about a spud gun...

to my knowledge none of have ever been used for this, but i don't know everything. But, I also don't see why this couldn't be used for it, as the primary mirror is parabolic.

jmeyer1022 wrote:Both sports aren't 1 time purchases sadly. Both will keep running money from your wallet.

now thats where i disagree, golf after u buy clubs and balls should be self sustainable. You find golf balls all the time while u look for yours, and tees are scattered all around tee boxes

I like to go observing at night occasionally, and its easier with a bigger telescope. So a while ago i decided i would build a bigger one. This is an 8" Dobsonian Reflector with a truss tube design to make it lighter. But while it looks like a telescope i have yet to find out if it functions like on...

well, for physics we had to build a catapult, and i think alot of physics classes do this, so post yours if you have one.

Here is mine, if u want more pics to see how it works just ask, but i think u guys can figure it out

one factor that not being taken into account is the equipment, i dropped $1k on my clubs, but i played for my high school team and i play everyday in the summer, so its worth it for me, but i dont think ive ever heard of someone paying $1000 of paintball gun and armour

Something I'd love to see is a design program which has all the fittings etc built in, so that you can simulate what your cannon will look like, and whether it will all fit together. myself and someone else had started this, but due to inability to contract enough of the right help, it never got fi...

I would be worried with "hydrogen enbrittlement" if there were any steel parts in the regulator.

but, i must say you have the best projects ever, i wish i was your friend

im exactingly in the middle of I-77 between Cleveland and Marietta so im close to fnord

if this is still in the works

my guess is an Orion booster shutoff test

just my 2 cents

breach loading maybe, and i remember a member named fred made a stainless steel gun, you should look into it to see if he used this size