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exact sciences

Quantum tunneling. Photo: depositphotos.com

Does quantum tunneling cause genetic mutations?

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The human DNA molecule contains about three billion bases and replicates every day about two trillion times. For the cellular structure to be preserved, the replication process must be incredibly precise, but at the same time, the appearance of mutations shows that the process is not immune to errors. With the help of computer simulations, physicists and chemists from the University of Surrey In England they showed that errors in replication may occur due to quantum tunneling. 
The research students Yifat Baruchi and Yotam Mazuz-Harpaz test a measuring device in the laboratory

Light particles, dark particles

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Artificial particles, superfluid and supersolid will be characterized by the flow of electrons with zero friction, at relatively high temperatures
Multiverse - parallel universes. From Wikipedia

What is the Hemolyteverse?

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Following the new Marvel movie "Doctor Strange in the Dimensions of Madness" which takes place in the Multiverse, I decided to break down in a short article the meaning of parallel universes and the reasons to believe in their existence. In my opinion, science surpasses any imagination, including Marvel's imagination.
Chemists from the University of North Carolina have succeeded in developing a radical method that gives "extra life" to single-use plastic by 'upcycling' it into an innovative material of higher value (Image courtesy: Jon Gardiner)

An innovative, simpler and cheaper method for recycling plastic

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Chemists describe an innovative method they use to convert plastic thrown into the trash into a stronger, more stable material commonly used for food packaging. In the framework of such an upcycling, the method could be a simpler and cheaper means of recycling plastic
The JET magnetic fusion experiment is the world's largest tokamak. EFDA JET/WikimediaCommons, CC BY-SA

Improving the sides of nuclear fusion reactors - progress towards new energy solutions

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Nuclear fusion reaches a milestone thanks to better reactor walls - this engineering development leads to the reactors of the future, say researchers following a successful UK experiment
From the research of Prof. Kobi Shuyer and Prof. Pavel Ginzburg, Tel Aviv University

The latest technology to eliminate the reflection of light waves from surfaces

A surfer carried on a big wave. Illustration: depositphotos.com

How are waves formed in the sea?

Researchers have cracked the scientific mystery of the formation of sea waves using a theoretical model
In the picture you see a large collection of the "quantum trajectories" of the polaritons, where the distance from a certain reference point (the end of the tail seen in the upper right picture, the starting point of the simulation) is a measure of the number of polaritons. Additional polaritons are injected from outside and others disappear randomly (escape from the resonance cavity). The "tracks" start from the same point but then separate from each other due to the random occurrences, which differ from track to track. The frequency of the injected photons varies from image to image. Chaos appears in the upper right image, and in the lower left (the large bright area).

Shedding light on the chaos with a quantum chip

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Physicists at Ben-Gurion University are the first to try to understand the properties of chaos using a quantum chip. They mobilized light particles to simulate chaos and were able to predict correlations that indicate it
The butterfly hunter from the Jezreel valley dreamed of studying biology, until he came across an old physics book and discovered that natural phenomena can be calculated with mathematical tools. You are here Home > Publications > Milestone > In a nuclear shell Share tags Yigal nuclear thalamiphysics The shell model When the Soviet government closed the schools that taught Hebrew, Prof. Ben-Zion Dinburg (later Dinor, Minister of Education and Culture) arranged immigration licenses ("certificates") for teachers in the hope of bringing them to kibbutzim and moshavim. Thus, four years after the founding of Kfar Yehezkel, the second workers' settlement in the Land of Israel, the Ptolemy (formerly Smilansky) family, who immigrated from Ukraine in 1925, joined its ranks: the parents Moshe and Leah, teachers of Hebrew, their daughter Tahia, about ten years old, and their toddler son, Yigal, less than one year old. On the ship that arrived from Odessa to Jaffa there were two more families of teachers, but they stayed in Tel Aviv, which seemed quite pioneering to them. Yigal grew up in Moshav at the foot of the Gilboa, in the heart of the Jezreel Valley, and studied until the XNUMXth grade at the school in the village that his father ran (one of his students, Azaria Alon, wrote highly of Moshe Ptolemy). The XNUMXth grade was in the Geva group, and Vigal and four other boys walked to the Geva every morning. When it rained and water flowed in the wadi between the settlements, crossing was not possible. Prof. Yigal Ptolemy. Contributed a lot to shaping the image of the Weizmann Institute

in the nuclear envelope

The butterfly hunter from the Jezreel Valley dreamed of studying biology, until he came across an old physics book and discovered that natural phenomena can be calculated with mathematical tools
Darkness, concentrate a moment. From the study. Tel Aviv University

Darkness, concentrate a moment

Researchers have proven that darkness can be focused just as light can be focused
A whirlpool in the water. Illustration: depositphotos.com

Turbulence also maintains "social distancing"

The research was able to find hidden order in apparently "messy" rotating physical systems, such as proteins and vortices
Mathematical representation of data. Illustration: depositphotos.com

Prof. George Lustick of MIT has won the 2022 Wolf Prize in Mathematics

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The 2022 Wolf Prize in Mathematics has been awarded to Prof. George Lustig, Massachusetts Institute of Technology (MIT) for his pioneering contributions to modern representation theory and related fields
Measuring minutes and seconds. Illustration: depositphotos.com

measure the time

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the alternating definitions of the second
Atomic clock. Illustration: shutterstock

What is the national atomic clock and why is it constantly listening to navigation satellites?

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On the occasion of the winter solstice, which began today, Dr. Nadia Goldovski - the person in charge of time and frequency measurements at the National Physics Laboratory at the Ministry of Economy and Industry, explains in an interview to the science website how the time is set in her laboratory using atomic clocks
Quantum entanglement. Illustration: depositphotos.com

Commendation to an Israeli researcher in the field of quantum entanglement

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The award was awarded to researcher Dr. Shlomi Kotler from the Hebrew University by the British Association of Physicists for his research on quantum entanglement 
The laboratory team of Prof. Moran Berkowitz from the Faculty The laboratory team of Prof. Moran Berkowitz from the Faculty of Mechanical Engineering at the Technion flying in zero G. Photo: The Technion for Mechanical Engineering at the Technion in Flight at Zero G. Photo: Technion

100% success in zero gravity

A group from the Technion managed to produce lenses in zero gravity in 20 seconds in a unique NASA plane

Futuristic transportation - the speed of light 1: solutions in science fiction

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Professor Asher Yaholom, Department of Electrical and Electronics Engineering, Faculty of Engineering, Ariel University in Samaria * The article was published in Issue 7 of the Cultural Affairs Journal - correct
A spaceship leaves the galaxy. Illustration: depositphotos.com

Futuristic transportation - the speed of light 2: do the laws of physics allow it

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vortex. Illustration: depositphotos.com

Vortex of one atom

The institute's scientists and their research partners from the Technion and Tel Aviv University have for the first time created mixed beams of individual atoms
The lens manufacturing process. Photo: Rami Shloush, Technion speakers

Cheap and fast technology for creating complex optical lenses using liquids

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An original technology developed at the Technion makes it possible to produce complex and precise optical components quickly and without the need for casting and polishing
Artist simulation for a particle physics experiment. Credit – Jefferson Lab.

A first international experiment of its kind has confirmed the theory of particle physics that there is no evidence for the existence of a fourth neutrino

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The experiment, with the participation of nearly 200 physicists from different countries, was conducted at the Fermilab National Laboratory in the United States. The team of experts from Israel included two research groups, Dr. Adi Ashkenazi and Prof. Eli Pisatsky from the School of Physics and Astronomy at Tel Aviv University
Doppler effect. Illustration: shutterstock

Spotlight on the Doppler effect

If you have ever stood on the side of a highway, or an ambulance passed you by at high speed, you must have noticed the change in tone that occurs exactly when the vehicle or the siren passes you by: the noise "drops" sharply from high to low tones, from treble to bass.
Prof. Luigi Amico. Photo TII

Researchers are turning their attention to the post-electronic future

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Atomtronics, a field that focuses on finding ways to transfer whole atoms instead of electrons as in traditional electronic devices is still in its infancy, but has the ability to open a new direction of technological innovations
Neutrino particles. Illustration: depositphotos.com

Looking for the fourth neutrino particle - the "barren"

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An Illinois Tech physicist has a hand in groundbreaking findings in the search for new neutrino particles in the universe
Schrödinger's cat. Illustration: depositphotos.com

New research gives Schrödinger's cat a 50% chance of survival in new quantum computer logic

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In existing quantum computers, qubits are like a cat locked in a box with poison that has a 50% chance of being released, so the cat is both "alive" and "dead" until the box is opened. The last experiment can be compared to a situation where four events - "the cat is dead or not", "the poison is released or not", "the poison is emitted or not", "the atom is triggered or not" - occur in the superposition of four different time orders at the same time
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