"[V]egetarianism is a commendable departure from the established barbarous habit. That we can subsist on plant food and perform our work even to advantage is not a theory, but a well-demonstrated fact. Many races living almost exclusively on vegetables are of superior physique and strength. There is no doubt that some plant food, such as oatmeal, is more economical than meat, and superior to it in regard to both mechanical and mental performance. Such food, moreover, taxes our digestive organs decidedly less, and, in making us more contented and sociable, produces an amount of good difficult to estimate. In view of these facts every effort should be made to stop the wanton and cruel slaughter of animals, which must be destructive to our morals. To free ourselves from animal instincts and appetites, which keep us down, we should begin at the very root from which we spring: we should effect a radical reform in the character of the food."
Are there any good sources for a particular diet/restriction that correlates with mechanical or mental performance? Anecdotally the top performers I know generally balance meat/fruit/vegetables, eliminate sugar, and follow other common nutrition knowledge without committing to any particular diets or restrictions.
What you describe here is also set of particular diets that include many restrictions. The only difference is these restrictions are not considered extremely incompatible with the common diet.
See James Cameron's "The Game Changers":
I wish a plant-only diet was optimal across the board but so far I haven’t found the right one that is the case for me personally.
Can you please share who that was? And corroborating links?
""Speaking about his plant-based diet, the athlete said: "I'm going on and off.
"I was a complete vegan for eight years, but I would dabble into some seafood every now and then.
"Now, I dig fish.""
Tesla was truly a wizard!
Unusual language describing how we actually do remote control today. With a picture of an example boat no less!
 Hertz'ian radiations undoubtedly refers to EM
Specifically, EM with both longitudinal and transverse components which Tesla learned about at the 1889 Exposition Universelle (where the Eiffel tower was "unveiled") and against which he postulated EM waves with no transverse component (sometimes called Tesla waves, which is not to imply they really exist in nature.)
Edit: random downvote w/o a reply, classy!
A full archive of all Radio Regulations from 1906 to 2016 are all available at ITU's official website . Remember, those regulations were parts of the international laws at that time, and reflected the most authoritative information on radio. But if you read through an old Radio Regulation, you can see a lot of unusual languages.
* "Hertz" was not a unit of measurement before the mid-20th century. All frequencies are measured in cycles per second, 1 MHz is 1 Mc/s.
* The definition of radio waves.
> Radio Waves (or Hertzian Waves): Electromagnetic waves of frequencies lower than 3000 Gc/s, propagated in space without artificial guide.
This definition, including the mention of "Hertzian Waves", are still preserved in today's RR.
* Things that make use of radio are described as "radioelectric". A station that transmits radio was known as a "radioelectric sending station". An amateur radio operator is "a duly authorised person interested in radioelectric practice".
* The medium of radio communication was not described as a "radio frequency", but as a "radio wave". The transmit/receive frequencies are called the "calling and listening waves",
e.g. "all stations which are within the zone of the distress communications but which do not take part in them must refrain from using the “distress wave” until the distress working has ceased".
e.g. "if the direction-finding stations do not keep watch on the same wave, whether it be the wave on which bearings are taken or another wave, a separate request for the bearings must be made to each station or group of stations using a given wave".
It really shows how far we’ve come on the long way.
"I wish much to tell you on this occasion - I may say I actually burn for desire of telling you - what electricity really is, but I have very strong reasons, which my coworkers will best appreciate, to follow a precedent established by a great and venerable philosopher, and I shall not dwell on this purely scientific aspect of electricity."
What is electricity?