Black Hole
May contain traces of nut
Seen in this month's Scientific American (October 2013):
A planarian (flatworm) has a centralised brain and yet, if you cut off its head it is able to grow a new one in a couple of weeks. Amazingly, somehow it is able to retain a memory for its surroundings and where to find food, despite the decapitation.
Apparently iOS7 includes defences to some recently exposed exploits via apps with disguised malware or USB attacks.
The learned Scientific American is not immune to problems with units. In an article about the resources required to build generating plants from various forms of energy (oil, gas, solar, wind, biomass, etc), it compares each method with the total mix used at present - in terms of the "amount of metal needed for a specific technology to produce 1 kilowatt-hour of energy". Are we supposed to believe that generating electricity consumes iron, aluminium, zinc, etc? Either the lifetime of the plant has been built into the figures, or (more likely in my opinion) that should read "to produce 1 kilowatt of power".
A planarian (flatworm) has a centralised brain and yet, if you cut off its head it is able to grow a new one in a couple of weeks. Amazingly, somehow it is able to retain a memory for its surroundings and where to find food, despite the decapitation.
Apparently iOS7 includes defences to some recently exposed exploits via apps with disguised malware or USB attacks.
The learned Scientific American is not immune to problems with units. In an article about the resources required to build generating plants from various forms of energy (oil, gas, solar, wind, biomass, etc), it compares each method with the total mix used at present - in terms of the "amount of metal needed for a specific technology to produce 1 kilowatt-hour of energy". Are we supposed to believe that generating electricity consumes iron, aluminium, zinc, etc? Either the lifetime of the plant has been built into the figures, or (more likely in my opinion) that should read "to produce 1 kilowatt of power".