Every Wonder Why We Call it a “Duffle” Bag?

If you make your tent out of ordinary “canvas” you are going to get wet in the rain.  Canvas is a stout cloth, probably named after cannabis (Latin: “hemp”), made by tightly weaving material, mostly cotton, wool, and linen. This definition has not been that precise forever since the word canvas has come to signify …

Serendipity!

Sometimes the most interesting things are the things you learn by accident.  So, I did my normal Spymaster program at Princeton on September 12, 2021 and in this program, I demonstrate invisible inks.  My invisible ink (for cost and safety constraints) is a Na2HCO3 (baking soda) and turmeric reaction.  Unfortunately, when the people who graciously …

Serendipity!

Sometimes the most interesting things are the things you learn by accident.  So, I did my normal Spymaster program at Princeton on September 12, 2021 and in this program, I demonstrate invisible inks.  My invisible ink (for cost and safety constraints) is a Na2HCO3 (baking soda) and turmeric reaction.  Unfortunately, when the people who graciously …

Every Wonder Why We Call it a “Duffle” Bag?

If you make your tent out of ordinary “canvas” you are going to get wet in the rain.  Canvas is a stout cloth, probably named after cannabis (Latin: “hemp”), made by tightly weaving material, mostly cotton, wool, and linen. This definition has not been that precise forever since the word canvas has come to signify …

Serendipity!

Sometimes the most interesting things are the things you learn by accident.  So, I did my normal Spymaster program at Princeton on September 12, 2021 and in this program, I demonstrate invisible inks.  My invisible ink (for cost and safety constraints) is a Na2HCO3 (baking soda) and turmeric reaction.  Unfortunately, when the people who graciously …

Every Wonder Why We Call it a “Duffle” Bag?

If you make your tent out of ordinary “canvas” you are going to get wet in the rain.  Canvas is a stout cloth, probably named after cannabis (Latin: “hemp”), made by tightly weaving material, mostly cotton, wool, and linen. This definition has not been that precise forever since the word canvas has come to signify …