How Intel’s 9th Gen chips show the way forward after Moore’s Law | 19mm Momentary Push Button

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Leaving their advanced capabilities aside, the Sony A33 and A55 are also remarkably compact cameras. As we’ve noted elsewhere, because the mirror in the camera isn’t used to form a viewfinder image, it can be mounted at a steeper angle than normal, removing some thickness from the camera body as a whole (the flange-sensor distance must obviously remain the same, but there’s more room in the body for the shake-reduction system and other electronics), and the space normally required for the mirror drive system could be trimmed from the sides. As a result, the body is noticeably compact.

I recently had a home inspector ask me how hot is too hot when it comes to circuit breakers and switches. Many home inspectors, including all of the inspectors here at Structure Tech, use infrared cameras during home inspections. These cameras can’t see through walls, but can often alert us to problems with a house that can’t be seen with the naked eye.

On top of this, if we halve the current, then we can also use thinner and therefor cheaper wires in our power distribution system.

The US had the luxury of a relatively new infrastructure to deal with, just like our cars we built roads to fit the cars Europeans built cars to fit the roads, high RPM small displacement, VS low RPM large displacement in US. Power in Europe had to be retrofitted into 300 year old buildings, much easier with higher voltage-thinner wires, if you have ever been over there they also run their plumbing on the outside in old buildings because there is nowhere to put it inside the walls.

I’ve done enough research about power capacitors and mains voltage that after I unplug anything, including all the TV’s that I work on, to repeatedly press and/or hold the power button until I’m satisfied that it’s discharged before cracking it open.

They’ve lifted 200kg so far, and it looks like a pretty cool addition to a shop already packed with other builds, like their MOT spot welder and a propane tank sandblaster.

400 Hz is the frequency of choice for aviation. That’s why the PA system in airplanes has *that* particular background tone in it.

Aluminum wire has a lower ampacity than the same gauge copper wire, meaning aluminum must be larger to accomplish the same ampacity job as copper wire. The rule-of-thumb sizes rely on the lowest allowable temperature rating of the wire; in some cases, the circuit may have a higher ampacity if the insulation on the wire and the connection endpoints are all rated at 75°C (167°F) or 90°C (194°F).

No I don’t want one, because I have a computer museum and I don’t feel the need to instant-wipe all my floppy disks at the flip of a switch.

Potential starting relays consist of a high resistance coil and a set of normally closed contacts. The coil is wired between terminals 2 and 5, with the contacts between terminals 1 and 2.

I’ve not tried to account for phase differences (that is, power factor). It’s very naive. I measure the current via a CT and compute RMS across a whole cycle, then I find the peak voltage and do the math.