The idea is that mathematics is as much a part of our humanity as music and art. And it is mathematics that might be understandable — even familiar — to extraterrestrial civilizations, allowing us to strike up star-speak repartee.
Carl DeVito, an emeritus faculty in the mathematics department at the University of Arizona in Tucson, has proposed a language based on plausibly universal scientific concepts. He recently detailed his work at the Astrobiology Science Conference 2017, held from April 24 to April 28 in Mesa, Arizona. [13 Ways to Hunt Intelligent Alien Life]
Designing a signal that attracts attention and, on examination, is “clearly” the work of intelligence, is a complex problem, DeVito told Space.com. To explore the possibilities, he authored “Science, SETI, and Mathematics” (Berghahn Books, 2014).
DeVito spotlights the famous German mathematician Karl Gauss, who suggested in 1820 the planting of large swaths of Siberian forest in a graphical demonstration of the Pythagorean Theorem.
Some 20 years later, Austrian astronomer Joseph von Littrow was keen on touching off kerosene-filled trenches in the Sahara Desert that took on the form of various geometric shapes.
Both scientists thought that such large displays on Earth would surely grab the attention of faraway intelligent life. Doing so, they reasoned, would be communicating our planet’s intellectual prowess. (Neither idea was carried out.)
“The concept of first attracting attention and then displaying meaning is, perhaps, the best way to solve the problem,” DeVito said. “Maybe extraterrestrial intelligence will have similar ideas and thereby make themselves known to us.”
DeVito suggests that, for two societies to be able to exchange precise, scientific information of mutual interest, they must first learn each other’s units of measurement.
Together with linguist R. T. Oehrle, DeVito has developed a language for exactly that purpose, potentially enabling civilizations from different star systems to report to each other the masses of their planets, the chemical composition of their atmospheres or the energy output of their stars.
“It is, of course, based on some assumptions,” DeVito said. These assumptions include:
- Both societies can count and do arithmetic.
- Both societies recognize the chemical elements and the periodic table.
- Both have made a quantitative study of the states of matter.
- Both know enough chemistry to carry out chemical calculations.
Regarding these suppositions — all known to humans by the 19th century — DeVito said we can communicate the gram, the calorie, the degree (Kelvin) and our units of pressure.