Ah the fun of messing with the young engineers.
One of favourites is to ask for the metric adjustable wrench ... after the initial look of confusion they hand me the adjustable wrench. Of course I always reply with, 'I said the METRIC adjustable NOT the SAE adjustable'
And then there's always the left handed screwdriver :)
Ah the tricks some people will play on the new inexperienced guy.
I just heard about a new inducty to RF power who needed to place an attenuator between his Lab/benche tops driver amp and the input to a transceivers RF power amplifier stage.
He needed to sweep the transceivers PA stage and there was a possibilty that his benchtop/lab amps RF output could spike up due to slow AGC action during startup and drive the PA to 6 db overdive which could blow out his final RF amp stage.
Instead of listening to this advice another individual told him to lower the transceivers receive volume during transmit which would lower his drive to the transmitter.
The poor kid was just about to do this, and possibly blow out the drivers and final PA stage, when another seasoned RF guru caught wind of this and set him straight.
In my workplace, we like to joke about computers getting slow because the megahertz is leaking out. PCs come with a certain amount of megahertz inside, but over time, as you add software, it tends to leak, and the computer slows down. That's where all that dust inside your computer comes from: evaporated megahertz. Repair shops which promise to speed up your computer have a megahertz pump which can refill it to some extent, the same way you refill an empty ink cartridge. Large PC stores have a big tank of megahertz in the back. Once a week a tanker truck comes by to deliver more.... Maybe I can find some mobile megahertz on e-bay for my phone...
It's a little known feature of the Cray supercomputers that the fluorinert coolant also served to capture any leaking smoke and cycle it through large filter units around the base of the machine. The smoke was then recompressed by motor-generators (usually located in an adjacent room) and fed back into the chips. This system required special, soluble smoke which greatly increased the price of the machines, but allowed them to operate at clock rates that would have diffused ordinary smoke in seconds. Truly a groundbreaking design.
I'm flabbergasted that technology has advanced to the point that a similar effect can be had with a simple $1,111.12 benchtop device. Amazing.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.