http://sagacious.us en Math, science, travel and anything else that entertains the mind of Oliver http://sagacious.us/common/post.php/../?art=101 http://sagacious.us/?art=101 The San Francisco Forktail Damselfly is a voracious predator in all of its stages of life, as a nymph and as an adult. Nymphs are agile swimmers and are able to catch and eat any aquatic animal that is sufficiently small, including small fish and insect larvae, they are known to feed on mosquito larvae when present, they are generally opportunistic eaters... Mon, 27 Dec 2010 13:25:16 +0000 http://sagacious.us/common/post.php/../?art=99 http://sagacious.us/?art=99 Extending a demonstration setup by the Exploratorium, I was able to compute the speed of sound in air. This is an experiment which took no unusual equipment and very little special knowledge. Anyone could do this at home, (assuming they can hear fog signals from the Golden Gate bridge), here is how I did it. Mon, 28 Jun 2010 02:05:06 +0000 http://sagacious.us/common/post.php/../?art=98 http://sagacious.us/?art=98 A message in a bottle that I cast from a ship has washed ashore on Orchid Island off Taiwan and apparently it has made big news on the little island."It is a BIG wonderful, happy news for everyone in the island. Your letter brings Orchid Island good luck and a talk for the next few years - I am sure!!!" Sun, 21 Feb 2010 22:00:00 +0000 http://sagacious.us/common/post.php/../?art=81 http://sagacious.us/?art=81 As I come across the most frequent and most useful sections of the CFR's from the perspective of a professional mariner I have compiled those sections here. You may email me if you have any citations you would like added to this list. Sun, 03 Jan 2010 12:00:00 +0000 http://sagacious.us/common/post.php/../?art=94 http://sagacious.us/?art=94 Built in Philadelphia in 2004, the M/V Maunawili is one of Matson's five new ships making regular runs around the Pacific. Called the GCX, these five ships sail from Long Beach, California to Honolulu, Hawaii; Apra, Guam; Ningbo, PRC; Shanghai, PRC and finally back to Long Beach. Tue, 23 Dec 2008 12:00:00 +0000 http://sagacious.us/common/post.php/../?art=95 http://sagacious.us/?art=95 The waters off the coast of, and in the rivers of China are bustling with activity. There are very fertile fishing grounds in the East China Sea so the fishing fleets here are denser than you are likely to encounter any place else in the world. Tue, 23 Dec 2008 12:00:00 +0000 http://sagacious.us/common/post.php/../?art=90 http://sagacious.us/?art=90 I am often caught by the beautiful scenes that appear in the rough, industrial, dirty ports of the world. Sat, 15 Nov 2008 12:00:00 +0000 http://sagacious.us/common/post.php/../?art=91 http://sagacious.us/?art=91 We pay little attention to bathrooms as we travel unless we are in dire need of one and even then we don't pay attention to the bathroom itself only their relief it provides Sat, 15 Nov 2008 12:00:00 +0000 http://sagacious.us/common/post.php/../?art=92 http://sagacious.us/?art=92 Surely I'm biased, but San Francisco is a beautiful city. Sat, 15 Nov 2008 12:00:00 +0000 http://sagacious.us/common/post.php/../?art=82 http://sagacious.us/?art=82 Pacific ocean and US West Coast graphical (and text) marine weather products. If you would like a page dedicated to your location please email me. Wed, 29 Oct 2008 12:00:00 +0000 http://sagacious.us/common/post.php/../?art=97 http://sagacious.us/?art=97 Predicting weather was once based more on the seaman's eye than on satellite imagery, none the less, rhymes like these still hold a lot of truth. Tue, 28 Oct 2008 20:36:12 +0000 http://sagacious.us/common/post.php/../?art=93 http://sagacious.us/?art=93 CCSF offers a small handful of two day field classes focusing on local ecology. Bio-25, San Francisco Bay Ecology, focuses on the interactions of species along the shoreline in the bay, particularly focusing on the hardships endured due to changing salinity, dry summers, invasive species, pollution, habitat loss and the harsh marine environment in general Sat, 25 Oct 2008 12:00:00 +0000 http://sagacious.us/common/post.php/../?art=77 http://sagacious.us/?art=77 I know my brain has its limits but this limit was a little unexpected. Mon, 20 Oct 2008 12:00:00 +0000 http://sagacious.us/common/post.php/../?art=76 http://sagacious.us/?art=76 A few days ago I posted a couple poems inspired by both the geographic and the timewise expanse of the sea - by the responses I received it is clear that I did a poor job of showing what it is that I love about the sea. I hope this clears all that up a little. Sun, 12 Oct 2008 12:00:00 +0000 http://sagacious.us/common/post.php/../?art=75 http://sagacious.us/?art=75 Gray skies last for days.No birds, no whales, lifelessness.Every day the same Sat, 11 Oct 2008 12:00:00 +0000