A crash course in changing the world.
It's March 10th, 2020; more importantly, it's Tuesday.
Tuesday is shopping day, and like other residents of my neighbourhood I use my computer or mobile device to access the website of our neighbourhood's co-operative online grocery store. We usually wouldn't order anything through the internet - there's really no alternative to touching the vegetables to see if they're fresh and to checking the expiry dates on milk products to make sure that you don't get swindled. But this…Continue
Out planet is full to the brim with energy we can utilize. Life, sunshine, rainfall, geological forces and wind are but a few, and we're constantly learning cheaper and more efficient ways to harness these energies to fuel up our power grid. The most promising energy resource for my country is solar energy. Solar water boilers have been widely used here since the 1960s, and the rooftops of rural homes are slowly being covered with photoelectic panels.
Here's the problem, though: solar…Continue
Today is the last evening of Hanukkah. Christmas is less than a week away, and the Christian areas of Jerusalem are already decorated with shining Christmas lights. My family is out today, like many others, to see festive lights of a different kind. Religious Jews are obliged at the evenings of Hanukkah to light a Menorah - a vessel of 9 candles - at their windowsill. More observant Jews do not use wax candles for this purpose, but instead…Continue
Added by Alon Elkin on March 23, 2010 at 2:28pm — No Comments
Added by Alon Elkin on March 23, 2010 at 9:35am — No Comments