Tag Archives: Radiation

Mystery of the Shamir

This week’s parasha, Terumah, describes the construction of the mobile sanctuary, the Mishkan. While the Mishkan was designed to accompany the Israelites in their travels, the Haftarah for this week’s parasha describes how King Solomon finally built the permanent holy sanctuary in Jerusalem, the Beit haMikdash. The Haftarah tells us that the Temple “was built of stone finished at the quarry, and there was neither hammer nor axe nor any tool of iron heard in the house, while it was in building.” (I Kings 6:7) God did not permit the use of iron tools in constructing the Temple, for iron is an implement of war, and the Temple was a house of peace. So, how were the builders able to cut the stones without any iron tools?

The simplest explanation is that the stones were cut “at the quarry”, as the verse above states, and iron tools were only forbidden “in the house” itself. When God commanded not to use “hewn stones” for the altar (Exodus 20:23), it only meant not to cut the stones or bring iron tools directly onto the holy Temple Mount. The stones could, however, be cut elsewhere and brought to the Temple Mount. This suggestion is further supported by I Kings 5:31, where we read that “The king [Solomon] ordered huge blocks of choice stone to be quarried, so that the foundations of the house might be laid with hewn stones.”

Having said that, Jewish tradition holds that the stones for the Temple were cut entirely without the use of iron implements. Instead, our Sages teach that King Solomon had a unique tool called a Shamir, described as some kind of “worm” or “stone” that was able to penetrate even the toughest materials with laser-like precision. What, exactly, was the Shamir, and what might modern science reveal about this mysterious object?

Shamir in Tanakh and Talmud

The earliest source to mention the Shamir is the prophet Isaiah. In foretelling the destruction of Jerusalem, he said how the city “will be a desolation, it will not be pruned or hoed, and it shall be overgrown with shamir and thistles…” (Isaiah 5:6) This suggests that the Shamir is something organic and can grow. The notion is confirmed by the next source that discusses it, Jeremiah, who proclaimed that “The sin of Judah is inscribed with an iron stylus, engraved with tzipporen shamir…” (Jeremiah 17:1) Here we see the Shamir described as a tzipporen, loosely translated as a “fingernail” or “talon”. Again, it implies something organic, as opposed to the iron stylus it is juxtaposed with in the same verse.

We next see the Shamir in God’s message to the prophet Ezekiel, when He tells Ezekiel that He will make him like the Shamir, “harder than flint” (k’shamir chazak mitzor). Here we learn the Shamir is a substance of incredible strength. Rashi comments on this verse that the Shamir is a worm that splits rocks, or perhaps a type of hard flintstone, or even a particularly strong alloy of iron. The final direct mention of Shamir in the Tanakh is in Zechariah 7:12, where the nation is said to have hardened their hearts like the Shamir.*

Modern Rendition of the Choshen, the High Priest’s Breastplate

Next, we learn in the Mishnah that God created ten special, mystical things on the eve of the first Sabbath, at the very end of Creation (Avot 5:6). In this list is included the miracle-working staff of Moses, the Two Tablets of Law, and the Shamir. Rabbi Ovadiah of Bartenura (c. 1445-1515) comments here that the builders would draw a line on a stone, and the Shamir worm would crawl along the line and split the stone. He also points out that it was with the Shamir that Moses created the choshen and ephod, the Priestly Breastplate, and engraved the names of the Tribes of Israel into the precious stones on that breastplate. The source for this is the Talmud:

In Gittin 68a, we learn that Solomon was unsure of how to build the Temple without iron tools, and consulted with the Sanhedrin at the time. They told him: “There is a Shamir that Moses used to cut the stones for the ephod.” Solomon then asked the Sages where to find the Shamir, and this leads to a lengthy story about how he acquired it. (In fact, this is the longest story in the whole Talmud!) The puzzling narrative requires an in-depth analysis of its own, and is beyond the scope of the present discussion. Suffice it to say that it involves the great warrior Benayahu ben Yehoyada, a confrontation with Ashmedai, the “prince of demons”, and the angelic “Prince of the Sea”.

The Midrash (Yalkut Shimoni II, 182) has a slightly different account: Solomon knew how to speak to animals (I Kings 5:13), and he asked them where the Shamir might be found, at which point an eagle flew to the Garden of Eden and brought it to him! He then asked the Sages how to use the Shamir, and they directed him to Ashmedai. The Midrash also notes that the Shamir was so powerful it had to be wrapped in wool and kept in a special lead box filled with barley. The same teaching is found in the Talmud (Sotah 48b), too, where we also learn that the Shamir was the size of a barley grain, and that it ceased to exist following the destruction of the First Temple.

The big mystery is how the tiny Shamir, whether a “worm” or a “stone”, was able to penetrate hard substances and cut them with laser-like precision. While one could simply relegate this to a miracle, we generally hold that even God works through derekh hateva, natural ways, in most cases. Could there be a scientific explanation for the Shamir? Thankfully, our Sages left us a major clue that might help solve the mystery.

Shamir in Science

Our Sages taught that the Shamir had to be kept specifically in a box of lead to avoid danger. We have all probably received an x-ray exam at some point in our lives, and the technician always makes sure to put a lead jacket on the parts of the body not being scanned. This is because lead is an excellent blocker of dangerous radiation. This little detail strongly suggests that the Shamir was likely radioactive. Perhaps it used some kind of high-energy radiation to cut through stone. In fact, today we have nuclear-pumped lasers which use radioactive uranium fragments to create ultra-powerful light rays. Though such lasers are not commercially available at the moment, they have been proposed for use in manufacturing for precision deep-cutting and welding!

(Interestingly, renowned Jewish physicist Edward Teller, often called the “father of the hydrogen bomb”, proposed using such nuclear-pumped lasers in a space defense system that would shoot down enemy nuclear missiles. His “Project Excalibur” was soon scrapped and never realized.)

And then there’s the lithoredo. In 2019, scientists in the Philippines discovered a new species of shipworm, named Lithoredo abatanica. Unlike other shipworms which eat and bore into wood, the lithoredo eats and bores into limestone! They have special tiny teeth to grind away rock. Here is a worm that is actually able to eat through stone, and quite precisely, too. Could the Shamir have been a special version of the lithoredo, or a related species that is now extinct?

There is another tiny organism on the planet that is bizarrely able to withstand incredible conditions, including deadly radiation, dehydration, and even the freezing vacuum of outer space. This organism is the tardigrade, also known as a “water bear”. The hardiest creature on the planet, it can suspend its metabolism and literally go decades without any food or water at all. Uniquely, the DNA of tardigrades is protected by a special protein that blocks radiation, allowing them to survive levels of radiation hundreds of times greater than what would be lethal for humans. Could the Shamir have been some kind of special hybrid organism with qualities of both the tardigrade, capable of living many decades and withstanding immense radiation; and of the lithoredo, able to eat, digest, and cut through stone? Did the Shamir contain radioactive material in its body, or generate something laser-like? It is certainly within the realm of the scientifically-possible.

A real microscopic image (colour-enhanced) of a tardigrade. (Credit: Eye of Science)

Ultimately, we may never know the true nature of the Shamir, for there are those who hold the future Third Temple will not require the Shamir in its construction. The Lubavitcher Rebbe, for instance, taught that since in the messianic era “swords will be beaten into plowshares” (Isaiah 2:4), iron will no longer be considered an implement of war and will therefore be allowed in the building of the Third Temple. Others hold that the Third Temple will not require building at all, and will descend fully-formed from the Heavens (see Rashi at the end of Sukkah 41a). Whatever the case might be, may we merit to see it speedily and in our days!

Courtesy: Temple Institute


*For Marvel comics fans: the word shamir was translated into Greek as adamas, and then to Latin as adamans, and to English as “adamant”, the origin of “adamantium”, that super-hard element injected into Wolverine’s skeleton, and that made up the body of Ultron. (For more on Judaism and comic books, see here.) The Shamir was also the inspiration for the adopted last name of Israeli prime minister Yitzhak Shamir.

Genetically-Modified Moses?

At the end of this week’s parasha, Ki Tisa, we read how Moses descended from Mt. Sinai with his face glowing brilliantly (Exodus 34:29-30). The people could not look at his face directly, so he had to wear a mask. The exact wording in the Torah is karan ‘or panav (קָרַ֖ן ע֣וֹר פָּנָ֑יו). The latter two words are clear: “the skin of his face”. But what does karan mean? The most direct translation would be “horn” which is actually why, comically, throughout history some artists depicted Moses with horns! Another way of translating it is as “radiant” (based on this, the Modern Hebrew term for a ray or radiation is k’rinah, קרינה). Rashi comments that both are accurate; karan does indeed come from the word for “horn” because light rays shoot forth like “horns”. If we take a look at Midrash (with a little help from science), we will find that the Torah is secretly encoding something much more profound. Continue reading

Torah on the Big Bang and the Age of the Universe

The Torah begins with Beresheet, the famous account of Creation.  In recent times, many have questioned the validity of this narrative in light of the findings of modern science. In reality, the Torah’s account is quite accurate in scientific terms, and the Jewish tradition described the origins of the universe and its age with stunning precision centuries before modern science caught up.

According to Science

The current scientific model holds that 13.7 billion years ago, the entire universe was compacted into a super tiny point with infinite density. For some unknown reason, this point suddenly burst in a massively vast and rapid expansion of energy and radiation. As the early universe cooled and expanded, particles began to form, and then whole atoms, starting with hydrogen. Hydrogen atoms fused into helium atoms, and later on heavy elements formed from further fusion in the cores of stars and their explosions. Everything that we see today—the entire universe and all matter within it—emerged from that initial expansion, “the Big Bang”.

The evidence for a Big Bang is extensive. In fact, you can see some of it when you look at the “snow” on an old television that is not tuned to any channel. The antenna is picking up some of the cosmic microwave background radiation, the “afterglow” of the Big Bang. The entire universe is still glowing from that initial expansion! Popular physicist Brian Greene writes in his bestselling The Hidden Reality (pg. 43):

…if you were to shut off the sun, remove the other stars from the Milky Way, and even sweep away the most distant galaxies, space would not be black. To the human eye it would appear black, but if you could see radiation in the microwave part of the spectrum, then every which way you turned, you’d see a uniform glow. It’s origin? The origin.

The universe is glowing, it’s just that most people cannot see it because human eyes perceive only a very narrow part of the electromagnetic spectrum, which we call “visible light”. Light of a higher energy and frequency includes dangerous x-rays and gamma rays, while light of lower energy and frequency includes microwaves and radio waves. The seeming blackness of the universe is actually radiating with light—we simply cannot see it. Incredibly, this is precisely what the Torah states.

The electromagnetic spectrum. Visible light makes up just a tiny sliver of the spectrum. Some living organisms can see in UV or infrared wavelengths.

Zohar haRakia

We read in the Tanakh (Daniel 12:3) that “they who are wise shall shine as bright as the rakia…” The Torah tells us that God established a rakia (wrongly translated as “firmament”) on the second day of Creation, and this is where all the stars and planets are suspended (Genesis 1:15). The Talmud (Chagigah 12a), composed over 1500 years ago, further elaborates that above the earth is the vilon, the atmosphere that stretches over the planet, and beyond the vilon is the rakia, a vast expanse within which are all the stars. Beyond the rakia is a region called shechakim, the interface between the physical and spiritual realms, and further still are the highest levels of the Heavens, inhabited by angels and transcendental beings. From this, and other ancient sources, it is clear that rakia refers to outer space.

Daniel tells us that the wise will shine like the rakia, and goes on to state that “they who turn the many to righteousness [shall shine] as the stars”. We can understand how people might shine bright like stars, but why would Daniel say the rakia is shining? Outer space is totally dark! Of course, as Brian Greene described, today we know that the universe is indeed glowing.

One of the most ancient Jewish mystical texts is Sefer HaBahir. According to tradition, it dates back some two thousand years, and was first published at least seven hundred years ago. This book gets its name from another verse in the Tanakh (Job 37:21), which states “And now, men do not see the light that is bright [bahir] in the skies.” Once again, Scripture tells us that the universe is glowing with a bright light that humans are unable to perceive. Science has found that this glow comes from the Big Bang, and this too is accurately described by the most famous of Jewish mystical texts, the Zohar.

Cosmic Microwave Background Radiation, the glow of the universe, discovered in the 1960s by Robert Wilson and Jewish physicist Arno Penzias.

The Secret of Beresheet and the Big Bang

Like Sefer HaBahir, the Zohar was first published around seven hundred years ago, with its teachings dating back two millennia. The Zohar is a parasha-by-parasha commentary on the Torah, and naturally begins with the first section in describing Creation. The book gets its name from the above verse in Daniel which speaks of Zohar haRakia, the glow of the universe. It elaborates (I, 2a, 15a):

בְּשַׁעְתָּא דִּסְתִימָא דְכָל סְתִימִין בָּעָא לְאִתְגַּלְּיָא, עֲבַד בְּרֵישָׁא נְקוּדָה חֲדָא, וְדָא סָלֵיק לְמֶהֱוֵי מַחֲשָׁבָה. צַיֵּיר בָּהּ כָּל צִיּוּרִין חָקַק בָּהּ כָּל גְּלִיפִין… וְרָזָא דָא, בְּרֵאשִׁית בָּרָא אֱלֹהִים. זֹהַר, דְּמִנֵּיהּ כָּלְהוֹ מַאֲמָרוֹת אִתְבְּרִיאוּ בְּרָזָא דְאִתְפַּשְׁטוּתָא דִנְקוּדָה דְּזֹהַר סְתִים דָּא

When the Most Concealed One [God] began to create, He first made a singular point, with which he then brought forth all thought, drew all blueprints, and carved out all things… And the secret of “In the beginning, God created…” [Genesis 1:1] is radiance [zohar], from which all Utterances were created, in the secret of the expansion of that point of radiance.

Many centuries ago, the Zohar accurately and elegantly sums up the findings of modern science. God first created a tiny singular point which burst forth in light, and from which He “carved out” all things in existence. All of God’s Utterances (since the Torah says God created by speaking: “And God said ‘Let there be light.’”) came forth from the expansion of that initial primordial radiance.

Time is Relative

All that remains is the seeming contradiction in time. Science estimates 13.7 billion years, while the Torah speaks of six days. Of course, the nature of a “day” in the account of Creation is flexible, considering there was no Earth, sun, or moon until the third and fourth days (so how could there be a 24 hour day as we know it before this?) There were also no humans at this point, and the Torah describes Creation from the perspective of God, for whom “a thousand years is like one passing day” (Psalms 90:4). The fact that time runs differently for man and God actually highlights another scientific principle, as revealed by Albert Einstein.

Einstein’s theory of relativity holds that the passing of time varies depending on an entity’s speed. A person who could board a spaceship and fly near light-speed would experience very slow time. A few days for this person would be equivalent to many years on Earth. (This theme has been explored in countless science fiction books and films, including 2014’s Interstellar.) The Lubavitcher Rebbe often cited this fact to conclude that arguing about apparent space-time contradictions is therefore quite pointless. Meanwhile, physicist Gerald Schroeder has mathematically calculated that six days could be equivalent to 13.7 billion years when factoring in the universe’s expansion. After all, we are looking back in time at an ancient universe through human eyes, while God was looking forward in time from the universe’s first moments.

An infographic explaining the relativity of time. Note the conclusion: “there is no meaning to the concept of absolute time.” The whole debate of 6 days vs 13.7 billion years is therefore quite meaningless.

Physicist and Rabbi Aryeh Kaplan explored this issue extensively and cites multiple ancient Jewish texts that support the notion of a very ancient universe (see his book Kabbalah and the Age of the Universe). In multiple places, the Midrash states that before creating this world, God was creating and destroying many previous worlds (see, for example, Kohelet Rabbah 3:14), while the Talmud calculates that “there were 974 generations before Adam” (Chagigah 13b, Shabbat 88a).

On this last point, it has been shown that a generation according to the Torah is forty years (Numbers 32:13), and as we saw, a day for God is likened to 1000 human years (Psalms 90:4), therefore:

            974 generations × 40 years/generation × 365 days/year × 1000 human years/divine day =

14.2 billion years

Compared to the current best estimate of science at 13.7 billion years, it is amazing that one can come to a very similar number by simply putting together a few Torah verses.

What we see from all of the above is that ancient Jewish texts describe the universe’s origins in absolutely perfect detail. And it is only in recent decades that science has finally caught up. In many other ways, too, science has a lot of catching up to do.


The above is an excerpt from Garments of Light: 70 Illuminating Essays on the Weekly Torah Portion and Holidays. Click here to get the book!