Isaac Asimov is best known for his science-fiction and his books on popular science. His most famous work is the Foundation series, with which he later combined his robot stories.
In his robot stories, Asimov created worlds where robots and human co-exist - sometimes peacefully and gainfully, sometimes in conflict. In the course of writing these stories Asimov gave much thought to the possible behaviour of robots and their interaction with and impact on humans, and formulated his famous Three Laws of Robotics, which first appeared all together in his 1941 story, Runaround.
The Three Laws of Robotics state:
1. A robot may not injure a human being or, through inaction, allow a human being to come to harm.
2. A robot must obey orders given it by human beings except where such orders would conflict with the First Law.
3. A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.
Later Asimov added a Zeroth Law of Robotics to the three:
0. A robot may not injure humanity, or, through inaction, allow humanity to come to harm.
Asimov's Laws of Robotics have led to much debate and conjecture on their applicability to the actual development of artificial intelligence. While the Laws have greatly influenced science fiction writers and film makers, it remains unlikely that they will be applied to real life robotics any time soon.
Rabu, 29 April 2009
The Three Laws of Robotics
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Uniform Circular Motion
Gerak melingkar beraturan tuh..artinya gerakan benda yang melingkar dengan laju tetap.Coba kalian lihat, kalo ada benda yang bergerak melingkar beraturan, so pasti arahnya berubah tapi teratur.
Pada posisi manapun, benda itu bergerak dengan arah menyinggung terhadap putarannya.
Karena arah vektor kecepatannya sama persis dengan arah gerak benda, maka vektor kecepatan menyinggung terhadap gerak melingkarnya, betul2 menyinggung (arah tangensial). Perhatikan ajach animasi di atas, jelas toh... arah vektornya
Nah, sekarang terjemahin ya.. tulisan berikut (maksudnya..klik lanjuuuuttt......)
An object moving in a circle is accelerating. Accelerating objects are objects which are changing their velocity - either the speed (i.e., magnitude of the velocity vector) or the direction. An object undergoing uniform circular motion is moving with a constant speed. Nonetheless, it is accelerating due to its change in direction. The direction of the acceleration is inwards. The animation at the right depicts this by means of a vector arrow.
The final motion characteristic for an object undergoing uniform circular motion is the net force. The net force acting upon such an object is directed towards the center of the circle. The net force is said to be an inward or centripetal force. Without such an inward force, an object would continue in a straight line, never deviating from its direction. Yet, with the inward net force directed perpendicular to the velocity vector, the object is always changing its direction and undergoing an inward acceleration.
Source : The Physics Classroom : a highschool physics tutorial
