There's the MV Captayannis sunk in 1974 off Greenock.
32 posts • joined 19 Jan 2010
"The probe is currently 55 million miles away from its target and is speeding onwards at four kilometers per second"
This confusion is just why we have the Vulture central units.
"The probe is currently 640 million brontosaurus away from its target and is speeding onwards at 0.1334% of the maximum velocity of a sheep in a vacuum."
There, fixed it for you.
I suspect the 450V and 10 Ohms are to represent a real life power source of 450V with an internal impedance of 10 Ohms so the 197W dissipated by the resistance will be internal to the power source and cannot be changed. There will also be unspecified losses delivering the AC to the load. The >95% refers to the DC/AC converter alone.
It's not about this fridge being better for being connected to the world, it's about added "features" so the consumer may select this model over that one based on the quantity of feature bullet points in the description. These days it seems that "Feature Stuffing" is seen as leverage to sell a new product to a consumer who perhaps is bored with their plain old model.
I recall a magazine project from around the late sixties which was to build a medium wave radio which was powered from a long wave receiver (Radio 4). Due to the small power harvested it could only drive an earphone. Such a step up from a crystal set using the received radio power directly?
In the early 80s I was on a CD player maintenance course and was told that the forward error correction used to make them damage resistant was Reed-Solomon coding, developed in 1960 and used for Voyager communication. It is still in use for DVD and QR codes amongst many others.
I may have missed if someone has already suggested this, but whatever...
At ground level the speed of sound in air is about 340M/S, at 30KM or about 100,000ft the speed of sound is about 300M/s. An oscillator tuned by a resonant tube of air would fall in frequency by about 12% at this altitude. This could be measured and used as a trigger, also enabling the use of the phrase "LOHAN's Organ".
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