@dt_hayden Your story about dog poo gave me a good chuckle on an otherwise dismal Monday with a holiday weekend seeming very far off. I had a similar, yet entirely different, experience with a bad smell. We were on an airplane and were seated almost directly across from the lavatory. Midway into flight, a miasma filled the air that I could only surmise was emanating from the toilet area. A flight attendant came by, sniffed, and turned on her hell and walked away. She came back, wielding a spray can, presumably with deodoarant and began to spray mightily in the aisles and passenger seats nearby. I suddently noticed that the passenger in front of us bore a mightly resemblnce to "pigpen" and was the obvious source of the stinky smell.
Interesting concept, but a long time ago my Dad showed me how to make a locally-controlled mechanical equivalent (he learned this from an older brother and was passing along the mechanical engineering wisdom). Bend a piece of wire coat hanger into a U-shape, fasten a steel washer with 2 rubber bands to the looped tips of the U, and wind it up. Once armed, plant it under a cheek in a public place, such as a bingo hall. Trigger it by raising a cheek slightly and let the spinning washer unwind loudly. Don't need no stinkin' op-amps for this...
But have to wonder - is this digital or analog? And is it patentable?
@SC Ramjet.....nice idea. I have got him (and a couple of others) with a remote controlled fart box I got for $7 from our "Book Club" - a vendor who every couple of weeks leaves samples of various books and other goodies for sale at our reception. I've already had way more than $7 worth of fun from it :-)
@dt_hayden: This time I decided to suspect something closer to home and sure enough found a good size desposit of dog doo on my shoes.
LOL Good one.
A couple of evenings ago my wife and I were reading / on our iPads / watchingTV (typical multi-tasking). She was on the sofa and I was in my command chair. Every now and then I would notice her look up at me -- so I'd look at her and give her a smile.
Eventually she said: "Do you have gas?" It surned out she hadn't noticed one of our dogs was curled up pressed against the sofa under her feet -- he was being a little "potent" as it were and she was at ground zero -- meanwhile I was "upwind" of both of them because the air vents are in the ceiling a bit behand my chair.
Max, I had a similar episode years ago that involved smells. I was sitting in my cube at work when it suddenly smelled like my coworker in the next cube had a bad case of gas. Finally, I could take it no more and got up to get some fresh air. Walking by the next cube, it was empty, and I thought the occupant must have got up and left. I came back a few minutes later and the air had clearerd. I resumed working and the smell reappeared. Again it became intolerable and I got up for a short walk. Walking by the next cube, it was empty, and I thought Steve must have got up and left again. What are the odds? On returning to my cube, the air had cleared and I resumed working only to have the smell return. This time I decided to suspect something closer to home and sure enough found a good size desposit of dog doo on my shoes.
@David this reminds me of a prank pulled on my by my workmate
Ever had a phone plug appear open because a prankster dipped it into clear varnish and let it dry overnight? Took me a few minutes to figure out why the speaker would not work at our next jam session the next day - the clue was his failure to keep a straight face while watching my confusion.
@ScRamJet: When he stretches his legs under the desk it goes off. Heh Heh Heh.
Although not related, this reminded me of something that happened only yesterday. When I came out of our bedroom on my way to join my wife out on our back deck, I became aware of a strange "scratching" sound.
It was one of those sounds that bounces off the walls so you aren't quite sure where it's coming from. I thought it might be one of our cats, so I went hunting, but I couldn't see anything. When I stopped walking, so did the sound. I looked around but couldn't see anything, so I started to head out ... the two cats were sitting next to the back door.
Hmmm. I went back down the corridor into the laundry room for another look. It took me ages to realize that the sound was coming from some new "vacation / swimming / whatever" shorts that my father-in-law had given me for my recent birthday -- no wonder the sound stopped when I stopped walking.
I felt like a fool (but where was I going to find one at that time of the day? LOL)
@Prabakhar - this reminds me of a prank pulled on my by my workmate (one of an endless series of them.....)
He covered the speaker holes in my telephone headphones with white double sided tape. Then, so I would not notice, he put black insulation tape over that, so on cursory inspection it looked normal. Took me a while to figure it out, especially as the phone was old and we'd had some problem with others of the same type giving low output . It was one of his better pranks.....
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.