A machine like that would require twice as much power and would prove to be ineffective.
One quarter means one fourth of something and you work it out by halving something twice half it half it again
No, half of twice is once.
Biannual describes something that occurs twice a year, once every half year.
Something that occurs TWICE a month is called SEMI monthly (semi=half) and something that occurs every TWO months is called BI-Monthly (BI=TWO)
Two and a half, surely.
it is half the distance between the cores of two atoms in their bonded condition
Half of 50 is 25 and twice of that is 50. So 50.
1 and a 1/2
It depends on the computer type. If it is an Intel core 2 duo with 1.8 giga-hertz processor and 3 gigabytes of RAM, or any other computer like that with 2 cores, then the answer is no. If the computer has a single core, a low processor speed, and half a gigabyte of RAM, then the answer is yes.
twice as long as walking half the moon or half as long as walking it twice.
There is no special day for half-brothers, much less for half-brothers twice removed (a relationship name that has no meaning).
It is: 2*0.5*2.5 = 2.5