Archive for the ‘Security and Safety’ Category:

2019-09-16 Spy Satellite History

I have been reading the series about the spy satellites and their developments during the Cold War Era circa the 1960s and after. There was a lot of debate on whether or not to spend hundreds of millions of dollars on developing advanced spy satellites to spy on the Soviet Union and its satellite countries.

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2019-06-01 Elevator Telephones Were Scary

from FB group Bell Telephone of.. June 3 If the elevator phone wasn’t working, I had to hustle over and find out why. If the phone was not working, the security was supposed to tag it as out of service. That was definitely my scariest job. Most of the time the POTS line came into

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2019-04-26 Fake 14 AWG Speaker Wire

I got this 10 Amp power supply, so I wanted to make some heavy duty cables for it. I found that Walmart sold 50 feet of 14 AWG speaker wire for less than $20. I got it today, and after I stripped off the insulation, I thought that the stranded wire was much smaller than

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2019-04-18 We Take A Risk Every Time We Touch A Wire

from FB group Bell Telephone of… Apr 21 Jim Engle One time I was connecting up a POTS modem line and I was getting the crossconnect wire into the 66 block ready to punch them down. BRZZAP! I got zapped by the AC! Some idjit plugged a three prong plug into a 2 prong ungrounded

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2019-04-02 History: Part Of City Of Orange Evacuated

From FB group Orange Talk April 3 That huge tank has got what looks like a refrigeration unit on its end. There are some chemical plants that use those for storing chemicals that are very dangerous. Decades ago we had a bad windstorm and the power went out in the industrial area where the railroad

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2019-03-27

From FB group transistor radios Mar 29 Lin Holcomb One never knows what secrets the US government has hidden. They could have some other plans for using the WWV stations. Decades ago I worked for a radio engineer, and we had a frequency counter traceable to NBS (now NIST). He noticed that the frequency of

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2019-03-26 Fukushima Daiichi NPP Article

From https://news.nationalgeographic.com/2016/07/indian-point-nuclear-power-new-york-documentary/ “You traveled to Fukushima to film. What was your big takeaway from there?” “I found it incredibly chilling to be there. The plant itself is very strange. You don’t smell or see or touch radiation, so you don’t know. But [there’s] this whole process of getting completely suited up, and there are literally

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2019-02-04 Fukushima Daiichi Nuclear Power Plants

In the years since 2011 Mar 11, I have blogged a few times about Fukushima Daiichi, but it’s been quite awhile. This ABC Nightline video on YouTube seems to be realistic and relatively unbiased. At the end of this video they mentioned $15 Billion and forty years to do the cleanup. It looks like they

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2019-01-17 Power Outlets Made From Electric Outlets

From FB comment to Bill Sherman’s post Bill Sherman The cable jacket may be too big diameter to fit into the clamp. But you might consider the special 20 amp plug, the one they put on the power strips that are used in the server racks. I forget what they’re called, but we specified those

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2018-11-15 ESD and Weather

from FB group Building Transistor Radios 2018-11-19 Bob Johansen I worked at a company that had ESD mats on the workbenches, about 1980. We had wrist straps with a 1 Meg resistor in series with the cord to prevent shock hazard. I found that the leads of the resistors were broken but the heat shrink

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