THE very important letter of Dr. Aston in NATURE of December 18, 1919, gives much evidence in favour of a theory of the structure and composition of the nuclei of complex atoms as published by me five ...

Because they are in such wide use, the hazards of common chemicals sometimes are taken for granted. Complacency can set in and improper procedures may be used by those who work with the chemicals ...

It may contain inaccuracies due to the limitations of machine translation. From Purifying Pools to Powering a Greener Future Swimming pool. Provided by Getty Images Bank. During the summer, people ...

Here you get the CBSE Class 10 Science chapter 5, Periodic Classification of Elements: NCERT Exemplar Problems and Solutions (Part-III). This part of the chapter includes solutions for Question No.42 ...

Researchers from Kyoto University and Meiji University have led the quest to understand the origins of elements and the fundamental question of humanity to investigate supernova remnants.

I HAVE read Prof. Harkins's letter with great interest. If Prof. Harkins has succeeded in separating the isotopic hydrochloric acids he is certainly to be congratulated. The very meagre positive ...