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https://wis-wander.weizmann.ac.il/science-teaching/back-school
May 1, 2009
An opening ceremony was recently held by the Weizmann Institute of Science to commemorate the inauguration of the Rothschild-Weizmann Program for Excellence in Science Teaching. The program, made possible by the Caesarea Edmond Benjamin de Rothschild Foundation, is intended for o...
https://wis-wander.weizmann.ac.il/people/basic-instincts-basic-research
November 1, 2001
Raising children: A baffled father in The Fantastiks, the longest-running Broadway musical, sums it up like it is: "Plant a radish, get a radish, never any doubt . . . While with children, it's bewilderin, you don't know, till the seed is nearly grown, just what you've sown." We...
https://wis-wander.weizmann.ac.il/math-computer-science/prime-time-prime-numbers
November 1, 2001
Mystifyingly obstinate and divisible only by themselves and one, prime numbers start out small: 2,3,5,7,11,13. . . But the list is literally infinite. Today we know of prime numbers made up of hundreds of thousands of digits, and still more are waiting to be uncovered. The simple...
https://wis-wander.weizmann.ac.il/math-computer-science/century-old-challenge
November 1, 2001
In 1901 the German mathematician David Hilbert presented a list of twenty-two open problems that he thought would shape the future of mathematics in the 20th century. And indeed, most of Hilbert's problems were solved by the end of the century and in turn gave rise to new branche...
https://wis-wander.weizmann.ac.il/space-physics/electrons-map
November 1, 2001
We often realize the value of an object, or even a friendship, only after we have lost it. This is also true of electrons in a semiconductor. When such electrons move to a higher energy level, they leave behind a "hole" - the mark of a missing electron. This hole is the "alter eg...
https://wis-wander.weizmann.ac.il/space-physics/illusive-higgs
November 1, 2001
Once upon a time the universe was a simple place. It contained but a few types of particles influenced, it is thought, by a single force. Very hot and highly energetic, this unsophisticated universe could exist for only a very short period of time - a mere few seconds after the B...
https://wis-wander.weizmann.ac.il/chemistry/riddle-molecular-machine
November 1, 2001
Every time we breathe, the oxygen drawn into our lungs binds to iron atoms present in hemoglobin molecules in the blood; in so doing, it "hitches a ride" along the circulatory system. The hemoglobin molecules transport the oxygen to cells throughout the body, where the oxygen is...
https://wis-wander.weizmann.ac.il/chemistry/doing-twist
November 1, 2001
The genes mapped in the Human Genome Project encode the chemical sequence of proteins. But uncovering a protein's genetic sequence without understanding the factors that determine its three-dimensional shape (the primary property influencing protein function) is much like having...
https://wis-wander.weizmann.ac.il/life-sciences/praise-compromise
November 1, 2001
Genetic material (DNA) is damaged daily due to radiation, such as solar radiation, and exposure to many substances. This kind of damage can create mutations that may lead to the onset of various diseases, including cancer. To prevent this process, the cell has several "damage con...
https://wis-wander.weizmann.ac.il/life-sciences/whats-cell-do
November 1, 2001
In its earliest stages of development, the embryo consists of a small number of cells. As these cells divide and multiply, the embryo grows. But how do the lungs, heart, and other organs, so striking in their architectural waltz of form and function, develop? How do certain...
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The Sun
18.11.2020
Times of Israel
18.11.2020