Imagine dining in a European capital where you do not know the local language. The waiter speaks little English, but by hook or by crook you manage to order something on the menu that you recognise, eat and pay for. Now picture instead that, after a hike goes wrong, you emerge, starving, in an Amazonian village. The people there have no idea what to make of you. You mime chewing sounds, which they mistake for your primitive tongue. When you raise your hands to signify surrender, they think you are launching an attack.
Communicating without a shared context is hard. For example, radioactive sites must be left undisturbed for tens of thousands of years; yet, given that the English of just 1,000 years ago is now unintelligible to most of its modern speakers, agencies have struggled to create warnings to accompany nuclear waste. Committees responsible for doing so have come up with everything from towering concrete spikes, to Edvard Munch’s “The Scream”, to plants genetically modified to turn an alarming blue. None is guaranteed to be future-proof.
Some of the same people who worked on these waste-site messages have also been part of an even bigger challenge: communicating with extraterrestrial life. This is the subject of “Extraterrestrial Languages”, a new book by Daniel Oberhaus, a journalist at Wired.
Nothing is known about how extraterrestrials might take in information. A pair of plaques sent in the early 1970s with Pioneer 10 and 11, two spacecraft, show nude human beings and a rough map to find Earth—rudimentary stuff, but even that assumes aliens can see. Since such craft have no more than an infinitesimal chance of being found, radio broadcasts from Earth, travelling at the speed of light, are more likely to make contact. But just as a terrestrial radio must be tuned to the right frequency, so must the interstellar kind. How would aliens happen upon the correct one? The Pioneer plaque gives a hint in the form of a basic diagram of a hydrogen atom, the magnetic polarity of which flips at regular intervals, with a frequency of 1,420MHz. Since hydrogen is the most abundant element in the universe, the hope is that this sketch might act as a sort of telephone number. | Zamisli si, kako večerjaš v evopski prestolnici in ne poznaš njihovega jezika. Natakar govori precej slabo angleško in tako ali drugače uspeš naročiti nekaj iz jedilnika, kar si uspel razbrati, poješ in plačaš. Zdaj si namesto tega predstavljaj kako je šel nek pohod narobe in se naenkrat pojaviš, sestradan od lakote, v neki amazonski vasici. Ljudem iz te vasi se niti sanja kaj želiš od njih. Pričneš oponašati zvoke žvečenja vendar mislijo, da je to tvoj primitiven jezik. Ko dvigneš roke v znak predaje, mislijo da si se pripravil za napad. Komunikacija brez skupnega konteksta je težavna. Na primer, je treba pustiti radioaktivna območja na miru za vsaj nekaj deset tisočletij in čeprav je angleščina, ki so jo uporabljali pred 1000 leti sodobnim govorcem nerazumljiva, so se agencije trudile ustvariti opozorila ki bi opremljala jedrske odpadke. Odbori, ki so odgovorni za to, so predlagali vse možne rešitve, od visokih betonskih bodic do Edvard Munchevega "Krika" in genetsko spremenjene rastline, ki se spremenijo v opozorilno modro barvo. Vendar se nič od tega ne zdi dovolj dolgoročno. Nekateri sodelujoči na tem projektu za sporočila na jedrskih odpadkih so tudi bili del še večjega izziva: komunikacija z ne zemeljskimi bitji. To je osrednja tema knjige "Extraterrestrial Languages", ki jo je pred kratkim izdal avtor Daniel Oberhaus, novinar pri agencjji Wired. Popolnoma nič ni znano o tem kako bi lahko Nezemljani prejemali imformacije. Dvojica plošč je bila izstreljena v vesolje v zgodnjih 70-ih letih z vesoljskimi plovili Pioneer 10 in 11, na katerih so prikazani goli ljudje in groba mapa kako najti Zemljo - osnovne stvari vendar tudi te predpostavljajo, da lahko vesoljci vidijo. Ker je možnost, da bi nezemljani naleteli na ta izdelek, zanemarljivo majhna so radijski oddajniki na zemlji, ki pošiljajo sporočila s svetlobno hitrostjo veliko bolj učinkovita, da vzpostavijo kontakt. Vendar mora zemeljski radio biti na pravi frekvenci in prav tako ne zemelsjki način sporočanja. Kako bi lahko Nezemljani ugotovili to frekvenco? Na Pioneerjevi plošči se nahaja namig v obliki shematičnega prikaza vodikovega atoma, katerega magnetna polarnost se izmenjava v stalnih intervalih in sicer s frekvenco 1,420 MHz. S tem upajo, da bo vodik kot najbolj pogost element v vesolju deloval kot telefonska številka. |