The Naked Scientists

The Naked Scientists Forum

Author Topic: Spirit Level Bubbles ?  (Read 6704 times)

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
Spirit Level Bubbles ?
« on: 19/07/2007 12:06:32 »
Hi Peeps Of Individual Talents & Skills,

Here is my Spirit Level...it's cool isn't it ?

Notice how non level my surface is and praticularly how 'single ' bubbled the bubble is ?



How come ...as much as I try to shake it hard and fast..the bubble always remains intact ?


 

Offline dentstudent

  • Neilep Level Member
  • ******
  • Posts: 3146
  • FOGger to the unsuspecting
    • View Profile
Spirit Level Bubbles ?
« Reply #1 on: 19/07/2007 12:10:31 »
That's a sexy pen! (It is a pen, isn't it...).

Does it mean you can see if you're writing with a level-headed approach?

The liquid inside is an oily product, I think, and so perhaps harder to break the surface tension?
 

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
Spirit Level Bubbles ?
« Reply #2 on: 19/07/2007 12:17:02 »
That's a sexy pen! (It is a pen, isn't it...).

Does it mean you can see if you're writing with a level-headed approach?

The liquid inside is an oily product, I think, and so perhaps harder to break the surface tension?

THANK YOU DENTSTUDENT ( what's yor name ?)

yes it is a pen !...It's a special edition from a  UK Hi Fi Company called Musical Fidelity...it's well sturdy !

Hmmmm..I see....I can understand that an oily liquid would indeed be difficult to shatter !

LOL !!...yes..it helps me write in parallel !! when I brave non lined paper !!

It's actually very handy for making sure my turntable and speakers are correcly aligned !

THANK YOU
 

Offline Karen W.

  • Moderator
  • Naked Science Forum GOD!
  • *****
  • Posts: 31653
  • Thanked: 5 times
  • "come fly with me"
    • View Profile
Spirit Level Bubbles ?
« Reply #3 on: 19/07/2007 12:22:24 »
Stuart that was a good observation I would not have thought of the denser oil substance in the pen.. It is a nice pen.. why do they call it a spirit pen Kind Sir?
 

Offline dentstudent

  • Neilep Level Member
  • ******
  • Posts: 3146
  • FOGger to the unsuspecting
    • View Profile
Spirit Level Bubbles ?
« Reply #4 on: 19/07/2007 12:24:03 »
You are highly very welcome! You, my friend, can call me Stuart.
 

Offline dentstudent

  • Neilep Level Member
  • ******
  • Posts: 3146
  • FOGger to the unsuspecting
    • View Profile
Spirit Level Bubbles ?
« Reply #5 on: 19/07/2007 12:26:26 »
However, with further research I see that it is infact ALCOHOLIC! It is "usually a yellow coloured 'spirit' (a synonym for ethanol), leaving a bubble in the tube. Ethanol is used because of its low freezing point, −114C, which prevents it from freezing in cold weather. Most commonly, spirit levels are employed to indicate how horizontal (level) or how vertical (plumb) a surface is."
 

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
Spirit Level Bubbles ?
« Reply #6 on: 19/07/2007 12:29:18 »
You are highly very welcome! You, my friend, can call me Stuart.

YAYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY !!

Wocha Stuart !!....now then ...you're either studying to become a Dentist or a Dendrochronologist ?...or a car collision expert dealing with Dents !!
 

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
Spirit Level Bubbles ?
« Reply #7 on: 19/07/2007 12:32:10 »
Stuart that was a good observation I would not have thought of the denser oil substance in the pen.. It is a nice pen.. why do they call it a spirit pen Kind Sir?



Originally they were for determining the sobriety of alcoholic ghosts !!
 

Offline dentstudent

  • Neilep Level Member
  • ******
  • Posts: 3146
  • FOGger to the unsuspecting
    • View Profile
Spirit Level Bubbles ?
« Reply #8 on: 19/07/2007 12:33:52 »
Ah, 20 questions eh?

You're close with the dendrochronology bit - I'm actually studying a sort of dendroclimatology, but because I'm using annual height growth, it isn't "dendro" in the commonly used sense. My tag comes from HHGTTG "dentaurthurdent" as stated by Slartibartfast, but as I'm "Stuart", but also a "STUdent" I thought it would be appropriate. It works on so many levels!
« Last Edit: 19/07/2007 12:36:05 by dentstudent »
 

Offline dentstudent

  • Neilep Level Member
  • ******
  • Posts: 3146
  • FOGger to the unsuspecting
    • View Profile
Spirit Level Bubbles ?
« Reply #9 on: 19/07/2007 12:35:04 »
Stuart that was a good observation I would not have thought of the denser oil substance in the pen.. It is a nice pen.. why do they call it a spirit pen Kind Sir?



Originally they were for determining the sobriety of alcoholic ghosts !!

in the same way that kindred spirits were ghosts guests?
 

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
Spirit Level Bubbles ?
« Reply #10 on: 19/07/2007 13:01:35 »
Ah, 20 questions eh?

You're close with the dendrochronology bit - I'm actually studying a sort of dendroclimatology, but because I'm using annual height growth, it isn't "dendro" in the commonly used sense. My tag comes from HHGTTG "dentaurthurdent" as stated by Slartibartfast, but as I'm "Stuart", but also a "STUdent" I thought it would be appropriate. It works on so many levels!

YAYYYYYYYYYYYY !!

As well as spirit levels !!
 

Offline Karen W.

  • Moderator
  • Naked Science Forum GOD!
  • *****
  • Posts: 31653
  • Thanked: 5 times
  • "come fly with me"
    • View Profile
Spirit Level Bubbles ?
« Reply #11 on: 19/07/2007 13:29:25 »
Stuart that was a good observation I would not have thought of the denser oil substance in the pen.. It is a nice pen.. why do they call it a spirit pen Kind Sir?



Originally they were for determining the sobriety of alcoholic ghosts !!

OH I see! LOL.. HEE HEE HEE!  LOL!! I like it!
 

Offline Soul Surfer

  • Neilep Level Member
  • ******
  • Posts: 3345
  • keep banging the rocks together
    • View Profile
    • ian kimber's web workspace
Spirit Level Bubbles ?
« Reply #12 on: 22/07/2007 10:00:59 »
The reason is that alcohol has a very low viscosity and a reasonably high surface tension so any bubble that forms drains down and bursts quite quickly like bubbles on very clean water.  There is also not much room in the tube to get violent motion going and break up the single bubble into multiple bubbles
 

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
Spirit Level Bubbles ?
« Reply #13 on: 22/07/2007 14:07:32 »
The reason is that alcohol has a very low viscosity and a reasonably high surface tension so any bubble that forms drains down and bursts quite quickly like bubbles on very clean water.  There is also not much room in the tube to get violent motion going and break up the single bubble into multiple bubbles

THANK YOU IAN !!...very much !
 

The Naked Scientists Forum

Spirit Level Bubbles ?
« Reply #13 on: 22/07/2007 14:07:32 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums