Tagged: technology

Ancient wonders captured in 3D

Ancient monuments give us clues to astonishing past civilizations — but they’re under threat from pollution, war, neglect. Ben Kacyra, who invented a groundbreaking 3D scanning system, is using his invention to scan and preserve the world’s heritage in archival detail.

Apollo 11 in 100 seconds

The human brain is a remarkably efficient engine of visual processing. Even short 1-second shots can reveal an incredible amount of information, and recall one of the most extraordinary voyages of exploration in human history. Presented here is the first manned mission to the Moon, July 1969, in 100 one-second increments. Take a minute and a half and enjoy the voyage once again.

How to make a quantum bit

We have looked at how a transistor works, the fundamental unit of classical computers, and how a quantum computer works in theory, taking advantage of quantum superposition to hold exponentially more information than classical computers. Now we look at the practical side of making a quantum bit, or qubit. How do you put it in a state where it is stable? How do you read and write information on it? These processes are described for a solid state qubit – a phosphorous atom in a silicon crystal substrate. Both the electron and the nucleus of the phosphorous atom can be used as qubits.