jupitersterrain four

Sunday, 27 January 2013

jelly fish 

  free-swimming marine animals consisting of a gelatinous umbrella-shaped bell and trailing tentacles

The bell can pulsate for locomotion, while stinging tentacles can be used to capture prey

the oldest multi organ freshwater animal 

00.32am

00.07am

misc draft

unscrew

the lid wouldn't unscrew

suspended animation inflatable 

a balloon pump for angina  

 Intra-aortic balloon pump

newtons balloon rocket


When the balloon is released, the thrust from the opening propels it along the length of the string

away from gravity and air pressure 

If you have a lightbulb that becomes loose, I think you'll have to look for a different culprit than the cockroach. Although, if you see them doing it, please let us know. Here's another exotic possibility. Since all buildings actually vibrate a little, maybe the light bulb is in just the right place for the normal vibration of the building to cause it to work loose

I am wondering if someone could help me out. I am try to remove a very tight screw from an old curtain hanger. It is screwed to a rendered brick wall. It is also near the ceiling which makes awkward to move. My wrists are all worn out trying to unscrew it. Any ideas?


Re: How to unscrew stuck screw Fri, September 28, 2007 - 5:42 AM
Have you got an electric screwdriver? I have fairly weak wrists, and since I have one such, I can unscrew sooo many more screws than I could have otherwise, or screw things absolutely tight which might have been wonky or slightly loose before..

Re: How to unscrew stuck screw Fri, September 28, 2007 - 7:07 AM

If it is a slotted screw: 

Start with a sharp screwdriver. 

Like a chisel a screwdriver MUST be flat and sharp. 

People tend not to know this and they use their screw drivers for everything imaginable and most all of those uses tend to round over the edges of a screwdriver. 

Unless you do this your only options is brute strength. 

You can't use an impact diver or a hammer because the brisk will shatter. 

A power tool won't help because you will merely increase your odds of striping the screw head and leaving it permanently stuck in the wall 

There are old school reverse twist type screw extractors which usually work However they require that you own a power drill and the drill bits to use and then purchase the extractor kits. 

And there are new versions of screw extractors like these: 

www.leevalley.com/hardware/page.aspx

That work pretty well 

My suggestion is that you never - ever - not ever (That is is never as in never freaking ever) again use a screw that is slotted or phillips but that you use Allen screws ( internal hex hardened), hex head screws, and Torx Drive screws . and throw away all those others

Re: How to unscrew stuck screw Fri, September 28, 2007 - 7:33 AM
A "T" handled screw driver gives you a tremendous mech. advantage. And standing on something so that you can put your weight into it, keeping the screwdriver presed firmly , and squairly in the screw is necessary


Re: How to unscrew stuck screw Fri, September 28, 2007 - 5:25 PM
You might benefit from getting a very long screwdriver which fits the slot or the cross. Lean into it really hard and torque away to loosen the screw. An electric driver can work, saving you the twisting action, but getting a very long driver bit for this purpose means you have to buy an extra tool which you'll use maybe once. Then again, that's something *I* would do...


Re: How to unscrew stuck screw Fri, September 28, 2007 - 11:59 PM
Ahhhh GOT IT DONE! Thanks everyone, all input helped! 
I first whacked the screw with a hammer, 
then used a NEW Flat and Sharp (thanks Cliff) 
then used a NEW electric screwdriver and unscrewed in small bursts slowly (thanks Jana and Mickey) 
while putting my weight on it, and press firmly and squarely (thanks Dan) 

I’ve also bought a new tool box for the all the new tools I bought today such as an electric drill, hammer, chisel…Oh what FUN! 
I'm now ripping out the carpet

Also, depending upon the circumstances, try getting a grip on the screw head (or what's left after the head has been cut off) with a pair of vice-grips. That might also do the trick



Re: How to unscrew stuck screw Sun, September 30, 2007 - 4:51 PM
Congratulations... Funny that nobody mentioned liquid wrench. Sometime you can put a few drops on, let it penetrate overnight, and the next morning it'll come out like butter

and the liquid wrench would more likely run down the wall and never get to the threads 


taking the door off its hinges