Subscribe
Subscribe to receive new posts:
Available Now!
When Judaism Meets Science
Posts Tagged ‘Jeremiah’
The Metals of the Hebrew Bible: Gold and Silver
Of the ninety-two elements naturally occurring on Earth, the Hebrew Bible (the “Tanach”) mentions only six. The two most abundant elements in the Earth’s crust, by mass, are oxygen and silicon. Even though together they account for just over three-quarters of the mass of the crust, the Tanach says nothing about them. Aluminum is the next most common element, accounting for about eight percent of the mass of the crust, but it, too, is unknown, or at least unmentioned, by the authors of the Tanach.
The elements that the Hebrew Bible does identify, ordered by the frequency of mention, are gold, silver, copper, iron, tin, and lead. Uniquely, in the Book of Numbers (at 31:22), they are mentioned together and in that order as metals that can be purified by fire. Sometimes they are mentioned elsewhere in different combinations and various orders. Mostly, though, they are mentioned separately , although gold and silver are often cited jointly.
Gold, zahav in Hebrew, is the most frequently mentioned metal, being identified almost 400 times, according to one concordance. Silver, or kesef, is mentioned the next most frequently, almost 300 times. Counting copper is a bit problematic as the Hebrew word for copper is nechoshet, but that word is also translated sometimes as bronze and sometimes as brass, both of which are alloys of copper. Despite the frequency of their mention, gold, silver, and copper together account for less than 0.007% of the Earth’s crust. Still, the Torah mentions these three metals as important, for instance in the adornment of the Tabernacle. (See, e.g., Ex. 31:3-5.)
read more
What if Cyrus Had Not Freed the Jews?
Over twenty-five centuries ago, Cyrus II, founder and ruler of the Persian Empire, freed the Jews who had been transported forcibly to Babylon and facilitated the reconstruction of their Temple in Jerusalem. Without the intervention of Cyrus, the Jewish People and Judaism as we know it (if that is not redundant) would not exist today. In short, no Cyrus, no Jews. So who was Cyrus, and why aren’t we celebrating his actions?
Cyrus was born into the royal family of the small state of Anshan, located in what is now southwest Iran. Not long after becoming king of Anshan around 559 BCE, Cyrus first conquered nearby Media (550 BCE) and then turned west to capture Lydia (546 BCE) in what is now western Turkey. Next, he shocked the world by toppling the previously dominant empire of Babylonia (539 BCE). Whether his victory after a multi-year siege of the capital Babylon was more the result of brilliant tactics, Babylonian palace treason or some other factor can be debated, but it is crystal clear that Cyrus emerged from Babylon triumphant. And with this victory, Cyrus became ruler of, among other lands, the territory bordering and east of the Mediterranean Sea to and surrounding the Jordan River. read more
Eyes and Evolution: Why Do Some With Eyes See Not?
In the great satirical movie Duck Soup (first released 79 years ago to the date of this post), Mrs. Gloria Teasdale (Margaret Dumont), the financial underwriter of the nation of Freedonia, recruits Rufus T. Firefly (Groucho Marx) to be the insolvent country’s new president. The opposition then retains two spies, Chicolini (Chico Marx) and Pinky (Harpo Marx), to work for them. Toward the end of the film, in a bedroom scene with Teasdale, the spies both dress like Firefly in order to secure the combination to a safe. After she gives the combination to one Firefly (the disguised Pinky), Mrs. Teasdale watches him leave the room, but suddenly another Firefly (the disguised Chicolini) appears. Teasdale confronts Chicolini who denies leaving and blusters “Well, who you gonna believe, me or your own eyes?” He knew that Teasdale had convincing evidence against him. She was, after all, an eye-witness. And yet, she did not understand.
Perhaps more than on any other of our senses, humans rely on sight. Our camera eyes allow massive amounts of information to enter our brain, first through the lens at the exterior of the eye, and then from the inverted image on the retina at the back of the eye by way of the optic nerve. In the plains of Africa, our ancestors stood to gather information about their surroundings. Today we focus on ironically named smartphones, not so much to hear audio transmissions, but to stare at screens with text or other visual data.
So important is sight to us that over two-thirds of the sensory cells in our bodies are the light sensing cells in our eyes. So energy consuming is the human retina that it uses more oxygen per gram than does the brain. (Shubin, Your Inner Fish (Pantheon Books 2008), at 150; Lane, Life Ascending (W. W. Norton 2009) at 175.) read more