Archive for the ‘Uncategorized’ Category
It has managed to build the smallest magnetic data storage unit in the world. Use only 12 atoms per bit, the basic unit of digital information, and stores a full byte (8 bits) into a tiny amount of matter: only 96 atoms. In comparison, a modern hard drive needs more than 500 million atoms per byte.
The technological feat is the work of a team of scientists from IBM and the Center for Free-Electron Laser Science (CFEL) in German. This unique unit of data storage was built atom by Atom with the help of a scanning tunneling microscope in the IBM Almaden Research Center in San Jose, California.
The team of Sebastian Loth of CFEL and Andreas Heinrich of IBM built the regular patterns of iron atoms, aligning them in rows of six atoms each. Two rows are sufficient to store one bit. Read the rest of this entry »
Did the early universe was only a spatial dimension? That is the puzzling concept headed for a theory which has now proposed a way to prove or disprove it.
In 2010, the team of physicist Dejan Stojkovic, University at Buffalo (State University of New York), suggested that the early universe emerged from an infinitesimal point and at first was very small, began possessing a single space (like a pure straight line), before expanding to include two dimensions (like a perfect plan) and then three (and the environment in which we live today).
The theory, if valid, could resolve important puzzles of physics. Now, Stojkovic and physicist Jonas Mureika of Loyola Marymount University, also in the U.S., describes a way to prove or disprove this hypothesis. Read the rest of this entry »