Category Archives: History

Pesticides in Produce: Shoppers Guide

The Environmental Working group has posted their latest list of foods with the highest detected levels of pesticides. They recommend you buy these “dirty dozen” as organic.

  1. Apples
  2. Celery
  3. Strawberries
  4. Peaches
  5. Spinach
  6. Nectarines – imported
  7. Grapes – imported
  8. Sweet bell peppers
  9. Potatoes
  10. Blueberries – domestic
  11. Lettuce
  12. Kale/collard greens

Speaking of details, I could not help but wonder why the image tag and filename for #9 is “Potatoe

http://static.ewg.org/reports/2011/foodnews/img/potatoe.jpg

Railroaded

Richard White, author of Railroaded: The Transcontinentals and the Making of Modern America will, next Thursday evening at Presidio of San Francisco, lecture about security and the history of transportation as a service.

One justification for federal funding of the transcontinental railroads was the need to save California for the Union, but by the time construction got underway, the Civil War was over and California was safe. The railroads were built ahead of demand, floundered in bankruptcy, and created political and economic problems that plagued the West for a generation.

Thames River Bylaws and Signaling

The Port of London Authority’s River Bylaws of 1978 has a wonderfully simple and illustrative guide to signals on the Thames used to indicate movement, purpose, and size.

This is Byelaw 27(1)(b) for example:

Night Ferry

By night a ferry shall carry amidships in addition to sidelights, and the forward and stern lights prescribed by Rule 23(a) a blue light over a white light not less than 2 metres or more than 3 metres apart visible all round the horizon at least 1 mile.

Byelaw 29(2) caught my eye:

When the headroom of an arch or span is reduced, but still open to traffic, the following signals shall be suspended from the centre of that arch.

By day – a bundle of straw large enough to be easily visible.

Might be about time to update that signal. I guess we can be thankful it has already been updated from the old practice of hanging screaming convicts or rotting animal corpses.