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The code worked differently when the moon was full

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Re: The code worked differently when the moon was full

#61

Post by Animats »

bgirard wrote: post #39
m4rtink wrote: post #31

Earlier quoted context omitted.

I heard a story about an astronomer loosing the chance to be the first to report a commet one cold winter night - just as he wanted to send the email to report it, the Internet connection was dead! He ran from the observatory to the nearest place with Internet connectivity, but by the time he sent the email from there, there was already a report from another astronomer elsewhere, a few minutes ago. Reason for the mys…

When I started dating my wife she lived in a shared student residence. She would tell me that her internet didn't work when her room was cold. She had to wait for her space heater to heat up the the room. I didn't believe her at first but it turned out be true. She lived there for a year so I observed it several times. Never did find out what the problem is. I don't know if thermal contraction could effect solders be…

Yes. Not uncommon with bad soldering jobs. Problems like that can be diagnosed with freeze spray if necessary.[1]

[1] https://www.techspray.com/using-freeze-spray-to-diagnose-fau...

Re: The code worked differently when the moon was full

#62

Post by zikduruqe »

tabtab wrote: post #57
vidanay wrote: post #26

We once had a customer who would call us in a panic a couple of times a year saying our inspection equipment was experiencing unusually high false rejects and they were generating very high scrap rate. By the time we got a technician on site the next day, everything was working flawlessly and the customer couldn't reproduce the problem either. This went on for almost three years with various levels of escalation to t…

Our garage door opener has this problem. At very specific times of the year the sun confuses the infrared blockage sensor. The cause occurred to me when I lined up my eye to see what the sensor was seeing when it was failing, and I noticed the morning sun right next to the other end of the sensor stream. I moved a trash can to shade the sensor and it worked fine.

Just switch the sensors. Move the light source to the other side of the door, and the receiver to the shade. :tapstemplegif:

(That's how I fixed mine.)

Re: The code worked differently when the moon was full

#63

Post by NovemberWhiskey »

vidanay wrote: post #26

We once had a customer who would call us in a panic a couple of times a year saying our inspection equipment was experiencing unusually high false rejects and they were generating very high scrap rate. By the time we got a technician on site the next day, everything was working flawlessly and the customer couldn't reproduce the problem either. This went on for almost three years with various levels of escalation to t…

You get the same problem with geostationary satellites, e.g. for satellite TV.

There's period of about 10 days every spring and fall where, for up to 30 minutes every day, the sun transits 'behind' a satellite within the beamwidth of the dish and totally overwhelms the signal at the LNB.

Re: The code worked differently when the moon was full

#66

Post by dhosek »

Johnny555 wrote: post #9
swid wrote: post #6

Earlier quoted context omitted.

I was also hoping the title was more accurate. In the lines of the famous story of not being able to send an email 500 miles. https://web.mit.edu/jemorris/humor/500-miles

The end of that article is a good reminder of the units command, I've been using Google for units conversion for so long that I forgot about the standalone units . It even comes standard with OSX.

Is there an equivalent command for doing things like 147 days from today or days since 21 jun 2021 or 88 days after 15 Aug 2021? This is the one thing I really wish was in Spotlight (I use spotlight for unit conversion and calculations which is really handy).

Re: The code worked differently when the moon was full

#67

Post by mark-r »

tabtab wrote: post #57
vidanay wrote: post #26

We once had a customer who would call us in a panic a couple of times a year saying our inspection equipment was experiencing unusually high false rejects and they were generating very high scrap rate. By the time we got a technician on site the next day, everything was working flawlessly and the customer couldn't reproduce the problem either. This went on for almost three years with various levels of escalation to t…

Our garage door opener has this problem. At very specific times of the year the sun confuses the infrared blockage sensor. The cause occurred to me when I lined up my eye to see what the sensor was seeing when it was failing, and I noticed the morning sun right next to the other end of the sensor stream. I moved a trash can to shade the sensor and it worked fine.

I had the same problem with my garage door opener. Tried shading the sensor but it still didn't work reliably. Finally replaced both the sensor and transmitter and it has been good ever since. My theory is that the lens got dirty or scratched over the years and was picking up stray light from odd angles.

Re: The code worked differently when the moon was full

#68

Post by [deleted] »

munificent wrote: post #47
vidanay wrote: post #26

We once had a customer who would call us in a panic a couple of times a year saying our inspection equipment was experiencing unusually high false rejects and they were generating very high scrap rate. By the time we got a technician on site the next day, everything was working flawlessly and the customer couldn't reproduce the problem either. This went on for almost three years with various levels of escalation to t…

Bughenge.

[deleted]

Re: The code worked differently when the moon was full

#70

Post by steve_taylor »

vidanay wrote: post #26

We once had a customer who would call us in a panic a couple of times a year saying our inspection equipment was experiencing unusually high false rejects and they were generating very high scrap rate. By the time we got a technician on site the next day, everything was working flawlessly and the customer couldn't reproduce the problem either. This went on for almost three years with various levels of escalation to t…

Reminds me of the sun outage that affects Indian stock exchanges (BSE and NSE) at certain times of the year. VSATs used by traders experience loss of connectivity to geostationary satellites while they transit the sun.

https://en.wikipedia.org/wiki/Sun_outage

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