APPLICATIONS OF SCIENCE AND TECHNOLOGY. KIP/ASVT 2009/10. Accelerating Growth. Double exponential growth.
How can you explain what is meant by nanotechnology?
Nanotechnology: Innovation for tomorrow´s world
A big random number is used to make a public-key/private-key pair.
Anyone can encrypt using the public key, but only the holder of the private key can decrypt. Secrecy depends on the secrecy of the private key
Using a private key to encrypt (thus signing) a message; anyone can check the signature using the public key. Validity depends on private key security
By combining your own private key with the other user's public key, you can calculate a shared secret that only the two of you know. The shared secret can be used as the key for a symmetric cipher.
United Nations Convention on Biological Diversity
Art des Akkus
The first commercially viable CT scanner was invented by Sir Godfrey at EMI Central Research Laboratories. Hounsfield conceived his idea in 1967, and it was publicly announced in 1972.
The original 1971 prototype took 160 parallel readings through 180 angles, each 1° apart, with each scan taking a little over five minutes. The images from these scans took 2.5 hours to be processed
the average background exposure is 1-3 mSv per annum
Paul Lauterbur (University of Illinois at Urbana-Champaign) and Sir Peter Mansfield (University of Nottingham) were awarded the 2003 Nobel Prize in Physiology or Medicine for their "discoveries concerning magnetic resonance imaging".
The lithotriptor attempts to break up the stone with minimal collateral damage by using an externally-applied, focused, high-intensity acoustic pulse
Ultrasonic energy was first applied to the human body for medical purposes by Dr. George Ludwig at the Naval Medical Research Institute, Bethesda, Maryland in the late 1940s.
As Low As Reasonably Achievable
As Low As Reasonably Practicable