This is an excerpt from Reaching out to ET
Step-by-step explanation:
- The story is about the different ways scientists use maths. Vakoch said they don't need extra terrestrial to speak English or German so they need to look into mathematics.
- He said even in 1820, the astronomers used geometry. One scientist suggested in drawing triangles. Another suggested in making a circle and filling it with kerosene so when lit, it can be seen from space at night.
- Then they used the binary system and some codes to send messages. Then they used pictures and started with simple counting.