The unified atomic mass unit, also called the dalton (symbol: Da), is a unit used for indicating mass on an atomic or molecular scale. It is defined as one twelfth of the rest mass of an unbound atom ...

IN the review of “A New View of the Origin of Dalton's Atomic Theory,” published in your issue of April 16, your reviewer, in summing up the evidence as to the origin of the atomic theory ...

John Dalton's revolutionary atomic theory transformed our understanding of matter, laying the foundation for modern chemistry. His instigated work in colour blindness also showcased his deep ...

IN an article in the Moniteur Scientifique Quesneville Prof. Maurice Delacre, stimulated by a passage in “The Life and Work of Gerhardt” by E. Gnmaux, severely criticises the attitude which ...