Thermodynamics

if we have water in vacuum tank and it evaporate at vaper pressure of it according to vacuum pressure.

Is the temperature of generated vapor equal that of water in tank?

thank to all who can help

Last Chance Riddle – Because I Was Discombobulated Last Week

UPDATE:  SOLVED by Phil at 3:46 pm

Just for you, since I was out of commission last week, I’m running an extra riddle.  Sorry you didn’t have as much notice as I might have liked to give, but I couldn’t make up my tiny mind about running this.

“Discombobulated” is another one of those scientific terms, by the way.


I’d like to give you a different kind of challenge, so let’s see if I can get a little evil on this one.  We’re going right into the SciFi genre, so get your geek on.

You’ll be looking for a thing.

This “thing” doesn’t really exist…

… and usually that’s true.

Some people think this thing can be contained and used.

That’s a very bad idea.

It doesn’t always appear in the same form, as different forms have different “tasks”.

It’s well-represented in the SciFi genre.

How’s that?  Quick little riddle for your Sunday.  I hope you like it.  I’m creeping around the comments, so write in and talk to me.

Tomorrow is the bonus riddle, just to remind you.  The person who solves this extra riddle will get their name on the list for the bonus riddle tomorrow, and will of course give me a post subject they want me to write about.  Have fun.

Land Cruiser Diesel Engine

CR4 crew

I have problem with land cruiser diesel engine 6 cylinders , in morning time i run the car normally no problem after few hours i stop the i try again to run it noway until to push the car to start again.

can you tell me what is the problem .

Note i repaire the fue

SETICon last call! | Bad Astronomy

setconlogoJust a reminder: this coming weekend (August 13 – 15) is SETICon, a convention where science and science fiction meet. You can read all about it in my posts where I announced I’d be there, and a followup. It’s still only $35 for the whole weekend, though there are options if you want to participate in more events.

I expect this to be a lot of fun. A pile of old friends will be there, and the talk lineup looks really cool. Scientists, astronauts, plus actors, writers, and more from Star Trek! Also, I’ll be playing — and singing — with Rock Band. Yes, you heard me. If you’re in the Mountain View (southern San Francisco bay) area, then you really should come.


Mouse Pointer Runs Out of Control

Regards!

Inspite of all settings in Control Panel ==>> Mouse ==>> Pointer Options ==>> Automatically ... have been unclicked.

Searched for any program installed but nothing found for this behaviour!

Any tip please !

EVA Plans Hit A Snag

Space Station EVA Unable To Remove Failed Ammonia Pump - More EVAs Ahead

"The next spacewalk to complete the removal of a failed ammonia pump module and installation and activation of a new pump module on the International Space Station's S1 Truss will take place no earlier than Wednesday. Expedition 24 Flight Engineers Doug Wheelock and Tracy Caldwell Dyson completed the first spacewalk to remove and replace the pump module at 3:22 p.m. EDT Saturday. As the result of an ammonia leak in the final line that needed to be disconnected from the failed pump module, the day's tasks were only partially completed."

Ungrounded System Earth Fault Protection

Take a case where a power transformer with star-delta configration star side neutral is impedance grounded and delta side is load side. If fault occurs on bus (load side) diff. relay of transformer gets tripped.what are the means available to detect earth fault protection on delta side?