It is hard to think of another behavioral difference so observable and so fundamental that has not been explained.

The United States has said that the two types of cruise missiles must simply have observable differences.

The observable and practical difference between them would be that the one who always believed falsely would quickly come to a bad end.

This displays how there is not only an observable difference between sympathy and personal distress.

This contrast in speech was probably connected with the observable physical differences between the two peoples.

However, x-ray diffraction tests show no observable difference in structure between the untreated and vacuum sublimed material.

The factors describe stable and observable differences among individuals in the performance of tasks.

Would it make an observable difference in the project?

However, if there were observable differences between the performance of kids in 1968 and 2009, I'd probably blame boredom.

Shorter wavelengths make the observable differences in measured intensities smaller, thereby making the distinction of absolute configuration more difficult.