Use a LED or a laser or any light source to transmit a prime numbers sequence in binary code. Send the first 10 prime numbers, then repeat the sequence all over again. Do this acoustically also, with tones selected from different frequency interval (20 Hz, 200 Hz, 2 KHz and 20 KHz).

At least this will show that the alien is facing an intelligent being.

I assumed that the alien is intelligent enough so that it can know and understand mathematics and it has sensors for light and/or sound.

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01010011010001010101010001001001001000000111001001110101011011000110010101110011001000010010000000100000010011100100000101010011010000010010000001100100011100100110111101101111011011000111001100100001

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Binary_landskyscape

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hello



01101000 01100101 01101100 01101100 01101111



68 65 6c 6c 6f



aGVsbG8=



104 101 108 108 111

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01001000011001010110110001110000001000000111010101110011001000000110001001100101011000010111010000100000011100100110010101110000011101000110100101101100011010010110000101101110011100110010111001010010011001010111000001110100011010010110110001101001011000010110111001110011001000000110110101110101011100110111010000100000011011000110010101100001011101100110010100101110001011010100101101100001011100110110111101101110

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0 1 10 11 100 101 110 111 1000 1001 1010 (to make understand that really we use decimal system)



Relevant numbers in binary format like Pi: 10/1*10/11*100/11*100/101*110/101*110/111*1000/111*1000/1010*1010/1000...*10 (please only with add)



Questions:

The radiation of the cosmic rays affect to your body? We need magnetic shields like atmosphere to protect our body. Can visit us?

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