Department of Chemistry
200 University Ave. W
Canada N2L 3G1
The 2014 Canadian Oxford Dictionary states that strategy is a “long-range policy designed for a particular purpose”, such as a strategy for effective learning. Tactics, on the other hand, refer to “a plan or method used to achieve something”, like completing all homework and studying well in advance of tests.
In medico-legal inquiries, it is often of the utmost importance to determine the character of red spots on linen or steel, supposed to be blood stains. M. Brucke has recently published the following method, as being superior to those in common use: – ‘Wash the spot with cold distilled water. To the reddish liquor thus obtained add a solution of sea salt, and evaporate to dryness, in vacuo, over a vessel containing sulphuric acid...
One of the many advantages of having students peruse sources of chemical demonstrations rather than my telling them which ones they should perform is that they occasionally come across demonstrations that I have not seen before. One example of this is when Stacey Wolfson found “How to Blow Out a Light Bulb” in A Demo A Day, Volume 2, B. Bilash II, G. Gross, & J. Koob, (1998), pages 208-209, Flinn Scientific, Inc. This demonstration was new to me.
Although Halloween is celebrated in a few areas in Mexico, the traditional festivity is the Day of the Dead, which falls on November 2. Many families visit the tombs of relatives and place thousands of yellow-orange flowers named “CEMPAZUCHITL” along with other items on an offering table, called “ofrenda”.