On the morning of August 6, 1945, residents of the populous Hiroshima were preparing to go to work or school. High above, a point silver slid them in the clear sky. It was a bomber B-29, nicknamed Enola Gay, its gates came a single bomb.
precisely at 8:15 am at 600 meters above the city, 38 kilograms of uranium is converted into energy with a deafening noise followed by a glare that lit up the sky marking the moment of the explosion. Within minutes, a plume of smoke gray-purple with a heart of fire (at an approximate temperature of 4000 ° C) became a huge "mushroom cloud" just over a mile high. Disappeared in a flash half of the city and with it 80,000 people were killed. Days after the atomic bombings of Hiroshima and Nagazaki, the message of surrender to the Emperor Hiro Ito addressed his subjects said: The enemy has begun using a new and extremely cruel bomb, whose power is capable of producing untold damage and loss of many innocent lives. The continuing struggle not only lead to destruction of Japan but to the total extinction of the human race "
When Albert Einstein structured his famous relation E = mc2 (the equivalence of mass and energy base for the development of the release of the atom ), his idea as any scientist, was trying to understand why the universe is as it is and what the operating rules. However, the code construction of the universe was reversed to create destruction.
"Today, the physicists who have participated in the demonstration of the most formidable and dangerous weapon of all time, we can not but be a voice of alarm: We can not and must not relent in our effort to make the world's nations and especially their leaders are aware of the unspeakable disaster they may have at least change their attitude toward each other and the task of shaping the future. "Einstein said in a radio message broadcast by the BBC in the 50's.
scientific disclosure or communication of science, aims to make a more wise, but a civilization more responsible. To the extent that science and to do daily talks are subject of coffee and sitting humans can understand that researchers are doing and the impact of acquired knowledge. The most important of this utopian scenario now is that you and I, we can determine the fate of science and away from the narrow interests of politics and the economy.
"It is possible that the cosmos is populated with intelligent beings. But the Darwinian lesson is clear: there will be no humans elsewhere. Only here. Only in this small planet. We are not only an endangered species but a species rare. In the cosmic perspective each of us is precious. If someone disagrees with you, let him live. You will not find anyone like that in a hundred billion galaxies. "Carl Sagan
