The wood did not float

[LarryEA]

Just an observation I found a bit odd.

I was soaking two pieces of wood in BLO,

one was Mahogany and the other was Jatoba (Spanish Cherry ?).

The Mahogany floated with about 90%+ submerged.

The Jatoba sank to the bottom.

Later, I will do a test of both woods in water.

A bit odd I thought since the Janka hardness scale has the

Mahogany more dense at 1600.

The Jatoba is 1375.

 

 

Larry

[Rob Roy]

Maybe this might help Larry. Jatoba comes in at 56 LBS per cube foot and the specific gravity is .91

Mahogany is 28LBS per cube foot, and specific gravity is .45, assuming you're using American Mahogany ????. 

You'll note from the foregoing the Mahogany is half the weight of the Jatoba. You will notice the specific gravity is halved also. So according to that the Jatoba will sink deeper than the Mahogany.

There's 13 different Mahoganies, so it will depend which species you are using. Hope this helps Larry.

Since I'm retired Larry I can sit and write this kind of stuff all day. A fine excuse to keep out of the "BOSS'S" way.        

[LarryEA]

Thank you Roy.

Good information.

And yes I tested those woods in water and

the Mahogany floated, the Jatoba sank18" the the bottom

of the bucket.

I have to check other sites to see if the Janka scale lists

Mahogany more dense than Jatoba.

I find this odd since "MY" common sense says the more

dense the less likely to float.

 

 

Larry

[Doug]

Larry

 

As Roy says, specific gravity relates to what happens to a piece of wood when you place it in water.  Janka hardness relates only to the hardness of the wood.  Although there is likely to be some correlation between the two it is not a direct correlation.  If you go to the following web site

 

http://www.wood-database.com/wood-identification/

 

you will find a listing of a large number of woods.  If you will click on the wood you will learn a lot about the wood and will also see the Janka hardness and the specific gravity of the wood.  If you click on "Janka" and on "Specific Gravity" you will find a better description of what each is.  I have the web site as a desktop icon and refer to it frequently.

 

Hope this helps.

[LarryEA]

Thank you Doug and Roy.

[Multifasited]

Well I Guess you all know what wood to use for your next submarine .    

[Doug]

Well I Guess you all know what wood to use for your next submarine .    

Check out Ironwood or Leadwood - I think there is a reason for the names they are called.  I would not want to cut either with any saw.

[amazingkevin]

i had some iron wood but never cut it ,don't think i could,very heavy too