Pinboard (jm)
https://pinboard.in/u:jm/public/
recent bookmarks from jmThe Fairy King’s advice on Trees. A poem from Early Ireland2019-05-27T20:25:54+00:00
http://irisharchaeology.ie/2017/06/trees-and-the-fairy-king-a-poem-from-early-ireland/?fbclid=IwAR1f9rCBFVXyO_LyrCE89c180N1svcJsI3nPlZqd8VYEauxLWRoocllvXe8
jmThis medieval Irish poem about trees is taken from a text known as Aidedh Ferghusa meic Léide (the Death of Fergus). In the poem, Iubhdán, the king of the fairies, advises the ruler of Ulster, Fergus mac Léide, on the special qualities of trees and which ones can be burned in the household fire.
]]>fairies trees wood history fire poems poetryhttps://pinboard.in/https://pinboard.in/u:jm/b:77d292c1e9f9/Using Kindle Fire's Parental Controls2018-07-12T10:51:36+00:00
https://kidslox.com/blog/using-kindle-fires-parental-controls/
jmkindle fire parental-controls devices kidshttps://pinboard.in/https://pinboard.in/u:jm/b:f34e91380fcb/A Loud Sound Just Shut Down a Bank's Data Center for 10 Hours | Motherboard2016-09-12T09:47:01+00:00
http://motherboard.vice.com/read/a-loud-sound-just-shut-down-a-banks-data-center-for-10-hours
jmThe purpose of the drill was to see how the data center's fire suppression system worked. Data centers typically rely on inert gas to protect the equipment in the event of a fire, as the substance does not chemically damage electronics, and the gas only slightly decreases the temperature within the data center.
The gas is stored in cylinders, and is released at high velocity out of nozzles uniformly spread across the data center. According to people familiar with the system, the pressure at ING Bank's data center was higher than expected, and produced a loud sound when rapidly expelled through tiny holes (think about the noise a steam engine releases). The bank monitored the sound and it was very loud, a source familiar with the system told us. “It was as high as their equipment could monitor, over 130dB”.
Sound means vibration, and this is what damaged the hard drives. The HDD cases started to vibrate, and the vibration was transmitted to the read/write heads, causing them to go off the data tracks. “The inert gas deployment procedure has severely and surprisingly affected several servers and our storage equipment,” ING said in a press release.
]]>ing hardware outages hard-drives fire fire-suppression vibration data-centers storagehttps://pinboard.in/https://pinboard.in/u:jm/b:55c7cd350f92/No Time To Spare [infographic]2013-07-17T22:37:58+00:00
http://www.cntraveler.com/dam/2005/11/air-france-2005-airbus-crash-infographic.png
jminfographics travel air accidents fire airbus safety escape a340https://pinboard.in/https://pinboard.in/u:jm/b:981270161c3b/