All Articles Fromהרב זמיר כהן

Exploring the continued prohibition of lighting fire on Shabbat in modern times when it requires minimal effort

Is a person obligated to sacrifice their job when it requires them to violate Shabbat? (Q&A)

Why is it permissible to benefit from electric lighting activated by a timer on Shabbat, while using communication devices is forbidden even when they are operated by timers? (Q&A)

Embark on a journey through the wonders of the universe by exploring the fascinating phenomenon of the 'City of the Future.' Let's start with a brief introduction.

A special mechanism continuously monitors for any errors in production and corrects them immediately. Imagine this advanced city is programmed to replicate itself with all its complexities… It's beyond human comprehension. And how many such cells does the human body have?

Ever wondered why one ear wouldn't suffice, like a single, centrally-located mouth? Here's the fascinating reason why our auditory design requires two ears.

A special software processes the images and merges them into a single 3D picture at lightning speed—within fractions of a second. Notably, the diameter of each such super-camera is just two and a half centimeters.

We often assume everything expands when heated and contracts when cooled, but water defies this expectation. As it cools, it begins to expand, creating a phenomenon that has left scientists in awe.

Discover how snow serves as nature's ingenious solution for protecting life during harsh winters.

Contrary to the initial impression that you need to dive into cutting-edge scientific discoveries to see the wisdom in nature, a simple look at the ordinary can reveal the clear hand of Hashem, the Master of creation.

According to mystical teachings, the initial pure illumination from which all of creation was made begins with the Sefirah of Keter, which contains all the sefirot. The color of Keter is a radiant white light. From it, all other sefirot emerge, each represented by a unique color.

The human body consists of a framework of white bones and red muscle that covers them. This reveals an inner kindness cloaked by an exterior of 'strength'.

Centuries ago, people noticed a surprising resemblance between the shapes of certain fruits, vegetables, and medicinal plants, and the human organs they benefit.

The number of individuals suffering from mental illnesses is extremely high in our time. Many people who have been mentally healthy throughout their lives, possessing self-confidence and judgment skills, suddenly find themselves experiencing excessive and irrational anxiety, imaginary fears, painful depressions, and other mental illnesses.

Extensive research has revealed that plants contain an exceptional laboratory that even the brightest human minds haven't been able to replicate. By utilizing air, sunlight, and carbon dioxide, green plants create sugars necessary for their survival and release oxygen into the air. A true marvel of creation.

Deep beneath the sea, a special submarine houses an electric power station occupying a third of its space, alongside sophisticated systems.

At the ocean's floor lies an unsuspecting rock with a worm moving above it. This movement draws the attention of a passing fish, eager for a quick meal.

From ancient battlefields to modern science labs, the art of explosion has fascinated humanity. But four tiny legs carry one of nature's most impressive explosive systems.

One should always strive to keep their bowels loose, and to be slightly inclined toward diarrhea. This is a major principle in medicine: whenever waste is withheld or expelled with difficulty, bad illnesses come.

Contrary to popular belief, consuming excessive amounts of healthy food isn't always beneficial. In fact, overindulgence is a key health risk, even when consuming only healthy ingredients.