The serial number is unobservable until we turn it over.

Note, however, that any differences may be due to other unobservable factors.

Then an observation term cannot be applied to something unobservable.

As such, it measures the unobservable "quality" of the vehicle.

In many real world applications, the process is latent, or unobservable.

All we know for certain is that any effect is so small as to be unobservable.

Private information generally refers to the player's hidden or unobservable type.

Needless to say this rendered some of them completely unobservable.

It thus accounts for unobservable characteristics that vary across countries but not over time.

The nature of unobservable operators is another important difference.

The most significant unobservable input is the multiple of earnings used for each individual investment.

Developing inquiry skills while learning about unobservable processes in chemistry.

Such identification from the output, however, cannot take account of unobservable dynamics.

They see learning as an internal, (almost) unobservable process that results in changes of beliefs, attitudes, or skills.

But in many situations, agents can actually exert unobservable efforts on several different activities.

But we just repeat, repeatedly substitute into this unobservable term right.

This may serve as an observable estimate of the unobservable population average, which is 2050.

Explaining the unknown by means of the unobservable is always a perilous business.

Work compensation schemes play an important role in "selecting" workers based on their unobservable skills.

Measurements c and d are redundant in the second case above, even though part of the system is unobservable.

Many lines are unobservable because they are absorbed by the Earth's atmosphere.

The returns on all possible investments opportunities are unobservable.

At distances greater than 10 femtometers, the strong force is practically unobservable.

Soon, most physicists accepted that atoms and molecules were unobservable yet real.

Can the constants of physics be explained by appeal to an unobservable “multiverse”?