Stephen B Johnson
Member
- Member since
- Aug 5, 2016
- Last active
- Dec 11, 2016
- Total activities
- 0
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Recent contributions
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#Threads
e06076bf-00e4-41b9-97ad-b84080ccaac3
Here is a good example of how a poorly planned use of multicast groups can look and what it looks like after...
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#Threads
1b4096c9-35c6-4429-8767-cf25db74a912
The responsiveness and controls of the F/A-18 are quite awesome. It's not like we can get a personal one though. A Marine...
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#Threads
DC-3 - How cool it'd be to rehab one
I keep thinking how I might want to get an old DC-3 and rehab it. Most of my aviation experience is on...
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#Threads
7d262135-b8b9-48cb-bb7a-cb0dc8fe9780
I'm in Madison, Wisconsin. It's part of the United States.
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#Threads
Multicast - the good, the bad, and the ugly
I inherited a video platform where they used the same multicast IP for transport streams and changed the udp port. You can...
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894577ee-942d-45c1-a7e7-52acbd34a3c3
Sorry about that... These can be viewed now.
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#Threads
Comparison of a device manager v. simple Perl script
Here is a comparison of an awful GUI implementation and what I did to work around this painful thing with a simple...
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#Threads
4439ce57-b655-41c3-b171-f8850c78a335
It's actually $3M with all the options. If you want to see something really crazy, google this address. This is a buddy...
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#Threads
An engineered machine / beast
I cannot wait until my Lamborghini Centenario Roadster gets delivered. If you haven't seen it, then it's a must see.
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#Threads
95f8d686-ff74-454c-bfcf-913012e11a4e
Interestingly... I have some of the initial concept designs for the B-1B which my grandfather had from his designs. I think it...
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#Threads
6eac98f1-773b-4e4e-a616-7a9574e2dc58
(1) Reduction of fuselage cracking in the engine bays. I've seen this as a problem on multiple types of military aircraft. (2)...
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#Threads
c278ca2a-1080-40aa-901e-12b7e47a15ad
You should make it left handed too. Then you could sell left handed screwdrivers. I already have left handed wrenches and a...
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#Threads
b7c51a46-921f-41a5-897b-089cc6a1835e
You could install wine and run windoze executables, but I'm not sure why anybody would want to do such a thing.
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#Threads
1f817718-82f8-42c7-b983-25b5f2c3539a
Since nobody ever intends to encounter deadlock, there is a nice way some processor allow you to recover in case one is...
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#Threads
0ae5ed6e-9520-4d36-bdf9-80c66927c175
In a RTOS, you can get into a priority inversion too. I recall this affecting NASA with the Mars Pathfinder. This can...
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#Threads
Safety hazard
If your lightening cable is showing signs of buldging near the connector shroud, please consider this image of a cable that I...
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#Threads
5dc40504-9fb6-4f50-b045-d9727afe65bc
In all seriousness, insect or plant like devices can be used as a covert sensor network even if they have limited or...
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#Threads
Flawless design, but...
We design may of our remote sites with lots of redundancy and think of many failure scenarios that we can recover from...
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#Threads
b8b92d39-21c1-4a87-9102-71e19957468f
A funny story. When I was in an F/A-18 squadron, we'd see Palmetto bugs (kind of like large cockroaches) around the hangar...
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#Threads
cdac9f3d-3f32-4c41-b635-026e57ca65c6
Stephen B JohnsonWhat was the first computer that you ever had or used? I had a TI 99-4A
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Spreadsheet misuse
How many of you have experienced spreadsheet misuse in your company? Seriously! It drives me insane when people send me some data...
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Ideal interview
I know this probably is not the norm, but my last two times interviewing were like this: (1) I received a call...
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#Threads
uDrone
My new uDrone concept. Virtually undetectable and can deploy in mass quantities.
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#Threads
First computer
What was the first computer that you ever had or used? I had a TI 99-4A
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#Threads
34aa789a-5dbb-41fd-baaf-549b2275953b
AC current "flows" like it is alternating. Small displacements back and forth...repeating over and over with an amost deterministic period. It will...
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#Threads
OS jumping to another OS image
I had an interesting request for an embedded system awhile back. The board was to boot fully into vxWorks, then load a...
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#Threads
4e8513aa-981b-44ab-8fc6-19ba915a96f1
Any form of energy can convert into a different form of energy. It's the efficiency of the transfer that varies. Light to...
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#Threads
5501b324-a6be-463f-a72e-df84685f70d3
The Raspberry Pi or the Beaglebone Black are awesome little devices. A decent performing ARM processor, lots of GPIO, and can easily...
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#Threads
e7c7cf30-3658-428f-8d21-587b9ba21cdd
No. This is the answer to whether a transformer can be designed without a core. A transformer without a core would be...
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#Threads
ec30da43-c935-4179-840d-625225a85efd
It may not be physical layer issues. It could be bugs in the DSP design where ports are improperly being put into...
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#Threads
9bf9aaae-9987-437d-aec4-f9c5a07f903b
Ok, if you are asking this question then you have no fundamental knowledge of how a transformer works. Eliminate the core entirely...
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#Threads
33dce206-c0d4-4cba-b0f0-23192e508d5d
Emacs - I can configure the fonts, colors, tabs to whatever I desire and it has worked for me for 20 years....
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#Threads
26596a1e-8659-4db2-aca0-540ef85bfdf2
The books or the lectures from Oppenheim @ MIT on signals and systems are good.
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#Threads
328b373e-fe80-4a22-be84-af8123dc8c2f
How can anything be posted improperly into this thread? "The Café - General Discussions On Everything" -- slight sarcasm 😨 In any...
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#Threads
f9360636-6503-4973-af3a-60afad93c323
Start wireshark, tcpdump, or whatever packet capture tool you have access to and capture some packet transfers for #-Link-Snipped-# (which will use...
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#Threads
e1f67289-c0a1-451b-b40d-adbebaba7645
Get vlc and start streaming some content onto some multicast IPs, then join the streams from different devices. We have vlc running...