Since my own genome was sequenced, my software has been broadcast into space in the form of electromagnetic waves, carrying my genetic information far beyond Earth. Whether there is any creature out there capable of making sense of the instructions in my genome, well, that's another question.
At the head of these new discoveries and insights comes the establishment of the facts that electricity is composed of discrete particles of equal size, or quanta, and that light is an electromagnetic wave motion.
I joined the Army and was sent to the MIT radiation laboratory after a few months of introduction to electromagnetic wave theory in a special course, given for Army personnel at the University of Chicago.
I've always admired sharks because they have a dimension of intelligence that is somewhat unique to that animal, and especially a great white. A great white has this organ called an ampullae of Lorenzini, and it can actually sense electromagnetic disturbances.
For under certain conditions the chemical atoms emit light waves of a specific length or oscillation frequency - their familiar characteristic spectra - and these can come in the form of electromagnetic waves only from accelerated electric quanta.
Gravitational and electromagnetic interactions are long-range interactions, meaning they act on objects no matter how far they are separated from each other.
We have all kinds of limitations as human beings. I mean we can't see the whole electromagnetic spectrum; we can't see the very small; we can't see the very far. So we compensate for these short comings with technological scaffoldings. The microscope allows us to extend our vision into the micro-sphere.
For in 1900 all electromagnetic radiation of longer wavelengths was already known at least to the extent that one could not seek in it the more striking characteristics of X-rays such as, for example, the strong penetrating power.