of enamel : mineral, water, organic material
√ contain two unique classes of proteins amelogenins and enamelins
√ The basic unit of enamel is called an enamel rod
Enamel rod
√ Enamel rod is unit of enamel
√ diameter : 4–8 μm
√ tightly packed mass of mineral(hydroxyapatite) crystals in an organized pattern.
√ Head toward the crown / tail toward the root of the tooth.
classes.
I dont have time to talk about this now.
Well, maybe you ought to make time.
Excuse me, Im not the one whos away
for months and months at a time.
I just dont understand.
Ill let him explain it. Can you take him
to the airport in the morning?
- Sams getting on a plane?
- He joined the Scholastic Decathlon Team.
- Theyre competing in New York.
- Sam joined a team?
- Yeah, I think theres a
diameter,
Im pleased to say is entry number .
- Nice knowing you, Chris.
- Help me!
Thats interesting.
Entered by Knapely WI
and baked by Chris Harper.
- Very, very well done. Its a beautiful cake.
- Thanks. Thanks very much.
And Im proud to say this cake also wins
the judges discretionary award.
It was really beautiful.
Thank you.
Listen, I never normally ask this.
The lightness of that sponge.
diameter are equally valid for spheres or circles, but one is chosen by convention. For aircraft or ships, the length or width can be used. For flow in a pipe or a sphere moving in a fluid the internal diameter is generally used today. Other shapes (such as rectangular pipes or non-spherical objects) have an equivalent diameter defined. For fluids of variable density (e.g. compressible gases) or