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Sun Apr 30 08:51:10 EDT 2017 Slept from twelve-thirty to eight-thirty. Rain likely today. High of sixty-one. Goals: - Work on IPv6 Done. - Play Nintendo Played some Kamiko. I hate those parrot fuckers. I'm having a hard time getting my home FreeBSD firewall to accept an IPv6 lease from Comcast. tcpdump shows my box sending dhcp6 solicits, and something responding with dhcp6 advertise, but my interface isn't getting an address. I did discover my cable modem serving web config at http://http://192.168.100.1. ...son of a gun! It helps to allow the "dhcpv6-client" port in PF. It's all working now. Vacuumed, watered plants, washed a load of laundry. That Canada goose is still nesting on top of the carports. A reasonably productive and entertaining weekend. Half-hour walk before dinner. Damp but no longer raining. Heard a morning dove, and saw a big rabbit. http://annarborchronicle.com/2012/05/03/in-the-archives-poison-pages/index.html > A second-floor shelf of University of Michigan’s Buhr book storage facility contains Michigan’s single most dangerous book. > It is one of only two known copies to exist in the state > “Shadows from the Walls of Death” is dangerous not in the sense of a book containing radical ideas. > Nor is it dangerous in the way a bomb-building manual might be. > In fact, after the title page and preface, the following 86 pages, each one measuring about 22 by 30 inches, contain no printed words at all. > Prospective “readers” of “Shadows” at the Buhr building must wear blue plastic protective gloves. > UM alum Robert Kedzie created “Shadows from the Walls of Death.” > He called attention to a problem raised by Massachusetts’ board of health in 1872 – the widespread use of wallpaper colored with arsenical pigment. > The story of Napoleon poisoned by arsenical wallpaper while imprisoned on the island of St. Helena in 1815 is a familiar rumor. > Largely forgotten, however, is that arsenical wallpaper was common and widely used in Michigan, Massachusetts, and elsewhere in the 19th-century United States. > In 1887, the American Medical Association estimated that between 1879 and 1883, 54–65% of all wallpaper sold in the United States contained arsenic, a third of which at dangerous levels. > Over time, the poisonous pigment could flake or be brushed off the wallpaper and float in the air as inhalable dust or settle on furniture in the home. > Originally a byproduct of the European mining industry, arsenic offered mining companies a means of profiting from a waste product, and offered manufacturers a means of obtaining a cheap dye. > Thousands of tons were annually imported to the United States. > The substance produced lovely hues ranging from deep emerald to pale sea-green. > Arsenic could also be mixed into other colors, giving them a soft, appealing pastel appearance. > Nearly four decades earlier, Robert Kedzie had delivered his own verdict: arsenical wallpapers must be eliminated from the state. > In 1874 he collected numerous wallpaper samples from Detroit, Lansing, and Jackson stores, cut them into pages, and had them bound into 100 books which he distributed to libraries around Michigan. > Kedzie’s public health campaign was reported to have poisoned one lady who examined the book, but it otherwise effectively publicized the dangers of living in a house papered in arsenic. Watched an episode of Father Brown. Learned to cook in Zelda. Breakfast: chips, coffee Lunch: macaroni Dinner: pizza

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