Ways to do highway(part 2)

What is blue smoke from asphalt mix?

Blue smoke is actually tiny oil droplets that make-up the blue haze that is typically associated with paving as well as the production of hot mix asphalt.

During paving, application temperature of asphalt should be as low as possible (blue smoke indicates
overheating).

Ways to do highway(part 1)

To shorten time to calculate the trial and error method

Actually can use form 2 general equation to determine the first value to try off.. Then can save some time.:)

Achievement...

My dream or mission should be achieve during secondary school..
finally done...

from primary-not actively involve in sport or exercise
end up become fat fat and white white..
Run also the last.. so shame..wahaha

At begining of secondary school also don like exercise..
After that join a group of frens.. every afternoon before class we
will go play basketball until whole school uniform fully sweat..
Then school force us to join ko-k ,don't have much idea then follow my primary school
friend(Chow HL) join Taekwondo.
Not an easy job .. very tired ..
Need to run outside the school wei..

So i tell myself must actively join in Taekwondo so i can keep myself fit.
BLACK BELT become my aim, YES this is what i want to say.. I finally done it..
So so happy..