Researchers may have discovered the tetraneutron, an atomic nucleus with only 4 neutrons. That theoretically shouldn’t exist.
Category: Subatomic particles
Laser types (Part 3, fiber laser)
In this third part, are shown the operation principle, advantages and disadvantages, and the applications of fiber laser.
The BASE experiment with protons and antiprotons
The new BASE measure with high precision didn’t show substantial differences between protons and antiprotons, beyond the electric charge signal.
Laser types (Part 2, diode lasers)
Semiconductor or diode lasers are the most used nowadays. The operation and materials used in this type of laser are shown in this post.
Laser types (Part 1, gas lasers)
This is the first post of laser types series. Toady’s subject is the operation of the main gas lasers, which were created in the 1960s.
How does the laser work?
This is the first of a series of posts related to lasers. This post’s topic is about the principle of laser operation.
The prehistoric natural nuclear reactor
2 billion years ago, occurred a nuclear fission in the Oklo uranium deposit, current Gabon, Central Africa. It’s the only natural nuclear reactor discovered so far.
High energy antimatter particle in Antarctica
The IceCube Neutrino Observatory, in Antarctica, detected an antimatter particle with highest energy ever registered. This event was predicted in 1960.
Carbon-14 for dating (Part 2)
In this part, are explained the methods to measure the quantity of carbon-14 in organic material, allowing to determine a fossil’s age.
Carbon 14 for dating (Part 1)
This post’s subject is carbon 14. A radioactive isotope which allows determining the age of an artifact or living being from thousand of years ago.