1. ## Measurements

Are these correct? If not, why?
1. This building is 0.5 Kilometers tall. (Why isn't 'kilometers' 'kilometer' ?)
2. This building is 0.5 Kilometer tall. (Wrong?)

3. This computer is one megahert. (How come this is incorrect? Isn't 'one' singular'? Like 'I have one car.'? )
4. This computer is one megahertz.

2. ## Re: Measurements

1 is the usual form. 2 is OK technically, but sounds very strange. 3 is wrong- Hertz is a name, so the 'z' doesn't indicate anything grammatical.

3. ## Re: Kilometers

2 is OK technically, but sounds very strange.
So grammatically, it is not okay?

4. ## Re: Kilometers

Originally Posted by jack
So grammatically, it is not okay?
2. This building is 0.5 Kilometer tall.
That's correct. Grammatically, 0.5 is more than 0.1, it's plural, so its noun should also be plural:

This building is 0.5 kilometers high.

5. ## Re: Kilometers

Thanks.

Grammatically, 0.5 is more than 0.1, it's plural, so its noun should also be plural.
1. The building is 0.0009 kilometers high.
2. The building is 0.0001 kilometer high. (So since it's '1' I would use 'kilometer'?)

3. So since it's '1' I would use 'kilometer'? (What does this one mean?)
4. So since it's '1' I will use 'kilometer'? (Fact? If it is 1, you will use it?)
What's the point of using 'would' vs 'will'?

6. ## Re: Kilometers

Originally Posted by jack
Thanks.

1. The building is 0.0009 kilometers high.
2. The building is 0.0001 kilometer high. (So since it's '1' I would use 'kilometer'?)
A building can't be that low, sorry.

The building is a kilometer high.
The building is 1 kilometer high.

Question: Are kilometers used to measure the height of buildings?

Originally Posted by jack
3. So since it's '1' I would use 'kilometer'? (What does this one mean?)
'would' refers to the past. Try, 'should'.

Originally Posted by jack
4. So since it's '1' I will use 'kilometer'? (Fact? If it is 1, you will use it?) What's the point of using 'would' vs 'will'?
Use 'should'. 'will' is for volition; i.e., you're definitely going to do it!

7. ## Re: Kilometers

Thanks.

Grammatically, 0.5 is more than 0.1, it's plural, so its noun should also be plural.
1. My strand of hair is 0.0009 millimeters thick. (Is this correct?)
2. My strand of hair is 0.0001 millimeter thick. (Is this correct?) (Since it's '1' I should use 'kilometer' not 'kilometers?)

8. ## Re: Kilometers

Originally Posted by jack
Thanks.

1. My strand of hair is 0.0009 millimeters thick. (Is this correct?)
2. My strand of hair is 0.0001 millimeter thick. (Is this correct?) (Since it's '1' I should use 'kilometer' not 'kilometers?)
My strand of hair is 0.0001 kilometers thick

With decimal points use kilometers, with an -s.

9. ## Re: Kilometers

With decimal points use kilometers, with an -s.
Why is that? Or is that a rule?

1. My arm is 0.1 meters long.
2. My arm is 0.1 meter long. (So this is wrong?)

How come the rule isn't like this:
3. My arm is 0.2 meters long. (0.1=singular 0.2=plural?)

10. ## Re: Kilometers

The decimal 0.1, even though it's less than 1, is represented by two numbers: "0" and "1", so whatever 0.1 quantifies must agree in plural number with that modifier: 0.1 meters long.

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