THIS book is a more elaborated presentation of the views as the nature of æther set forth by the author in a pamphlet published in 1898. The æther is “regarded as possessing properties such: s might ...

As the 19th century came to a close, physicists were feeling pretty satisfied with the state of their science. The great edifice of physical theory seemed complete. A few minor experiments remained to ...

All throughout the Universe, different types of signals propagate. Some of them, like sound waves, require a medium to travel through. Others, like light or gravitational waves, are perfectly content ...

Reader Nick Canning says the aether theory was “ascientific”(28 January, p 54). However, this theory was one of the most fruitful in the history of science. It was useful during the development of ...

Received wisdom holds that the notion of an 'aether' — a medium pervading all space, and the material 'substance' of the vacuum, if you will — was permanently relegated to the history books by ...