Proton

Proton radius puzzle

The proton radius puzzle is an unanswered problem in physics relating to the size of the proton. Historically the proton charge radius was measured by two independent methods, which converged to a value of about 0.877 femtometres (1 fm = 10−15 m). This value was challenged by a 2010 experiment using a third method, which produced a radius about 4% smaller than this, at 0.842 femtometres. New experimental results reported in the autumn of 2019 agree with the smaller measurement, as does a re-analysis of older data published in 2022. While some believe that this difference has been resolved, this opinion is not yet universally held. (Wikipedia).

Video thumbnail

How Big Is a Proton Anyway? This Decade-Long Debate May Have Just Been Solved

Scientists thought they knew the approximate size of a proton until a 2010 experiment came back with a very different number, creating the proton-radius puzzle. » Subscribe to Seeker!http://bit.ly/subscribeseeker » Watch more Elements! http://bit.ly/ElementsPlaylist After almost a decade

From playlist Elements | Season 4 | Seeker

Video thumbnail

Physics - Nuclear Physics (3 of 22) Volume of a Nucleus

Visit http://ilectureonline.com for more math and science lectures! In this video I will show you how to find the volume of a nucleus.

From playlist MODERN PHYSICS 2: ATOMIC AND NUCLEAR PHYSICS, PARTICLE PHYSICS

Video thumbnail

ATOMIC RADIUS - a quick definition

A quick definition of an atomic radius. Chem Fairy: Louise McCartney Director: Michael Harrison Written and Produced by Kimberly Hatch Harrison ♦♦♦♦♦♦♦♦♦♦ Ways to support our channel: ► Join our Patreon : https://www.patreon.com/socratica ► Make a one-time PayPal donation: https://ww

From playlist Chemistry glossary

Video thumbnail

Can You Believe It? #19 The Structure of a Proton

Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn the intricate structure of a proton at the level of the gluon and quarks. Previous video in this series can be seen at

From playlist CAN YOU BELIEVE IT?

Video thumbnail

Discovery of the Proton | Open Questions in Nuclear Physics

The proton is an important building block of all matter around us and was long thought to be a fundamental particle. In this video, we will talk about its discovery in the early 20th century. References: [1] C. A. Bertulani, "Nuclear Physics in a Nutshell" (2007). [2] https://en.wikipe

From playlist Particle Physics

Video thumbnail

Physics - Nuclear Physics (4 of 22) Density of a Nucleus

Visit http://ilectureonline.com for more math and science lectures! In this video I will show you how to find the density of a nucleus.

From playlist MODERN PHYSICS 2: ATOMIC AND NUCLEAR PHYSICS, PARTICLE PHYSICS

Video thumbnail

Atomic Radius - Basic Introduction - Periodic Table Trends, Chemistry

This chemistry video tutorial provides a basic introduction into atomic radius which is one of the four main periodic table trends you need to know. Atomic radius increases as you down a group and to the left across the periodic table. Atomic radius decreases with effective nuclear charg

From playlist New AP & General Chemistry Video Playlist

Video thumbnail

Talking with Nuclear Physicists

Today I speak with some nuclear physicists I met during my HUGS summer school. I learn about their research, and have nice discussions about what's at the frontier of nuclear physics. To find out more about HUGS nuclear physics summer school: https://www.jlab.org/conference/hugs2021 0:0

From playlist HUGS 2021

Video thumbnail

Charge in a Magnetic Field

A proton is moving in a magnetic field - what is the force on it?

From playlist Example Problems

Video thumbnail

Can You Believe It? #20 What is the Mass to Volume Ratio of an Atom?

Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn the mass to volume ratio of an atom of the proton mass and how many protons can an 1 cm^3 hold. Previous video in this

From playlist CAN YOU BELIEVE IT?

Video thumbnail

Phiala Shanahan Public Lecture: The Building Blocks of the Universe

In her public lecture at Perimeter Institute on Wednesday Nov. 7, Phiala Shanahan will provided a guided tour of the subatomic realm and described what supercomputer calculations of quarks and gluons can reveal about the origins of mass, the primordial nuclear reactions that power the Sun,

From playlist Public Lecture Series

Video thumbnail

Using Neutron Star oscillations to constrain dense matter physics by Debarati Chatterjee

PROGRAM VIRTUAL MEETING ON COMPACT STARS AND QCD 2020 (ORIGINALLY "COMPACT STARS IN THE QCD PHASE DIAGRAM VIII: THE ERA OF MULTI-MESSENGER ASTRONOMY") ORGANIZERS: Manjari Bagchi, Sarmistha Banik, Sudip Bhattacharyya, Prashanth Jaikumar, V. Ravindran and Sayantan Sharma DATE: 17 August

From playlist Virtual Meeting on Compact Stars and Qcd 2020 (Originally "Compact Stars in The Qcd Phase Diagram Viii: The Era of Multi-messenger Astronomy") 2020

Video thumbnail

CRIS stands for Colinear Resonance Ionization Spectroscopy

CRIS stands for Colinear Resonance Ionization Spectroscopy and it's an atomic technique, it’s interaction of lasers with exotic isotopes which allows us to study the properties of these isotopes and in particular its charged radius, its spin and its moment. So in one experiment we can me

From playlist CERN - the Laboratory

Video thumbnail

Pulsar Starquakes Make Fast Radio Bursts? + Challenge Winners! | Space Time | PBS Digital Studios

Get your own Space Time t-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support us on Patreon! http://www.patreon.com/pbsspacetime Help tran

From playlist Space Time Challenge Videos! (And Answers!)

Video thumbnail

Why Stars Shine | Professor Joshua Winn's Introduction to Astrophysics

If we followed a hydrogen proton around, waiting to see the thermonuclear fusion that produces starlight, we'd likely have to wait a few billion years. From there, however, it's just a 20,000-year hop, skip, and a jump away to producing helium-4. But put away your folding chair and that ad

From playlist Science

Video thumbnail

A roadmap to strange star by Renxin Xu

PROGRAM VIRTUAL MEETING ON COMPACT STARS AND QCD 2020 (ORIGINALLY "COMPACT STARS IN THE QCD PHASE DIAGRAM VIII: THE ERA OF MULTI-MESSENGER ASTRONOMY") ORGANIZERS: Manjari Bagchi, Sarmistha Banik, Sudip Bhattacharyya, Prashanth Jaikumar, V. Ravindran and Sayantan Sharma DATE: 17 August

From playlist Virtual Meeting on Compact Stars and Qcd 2020 (Originally "Compact Stars in The Qcd Phase Diagram Viii: The Era of Multi-messenger Astronomy") 2020

Video thumbnail

Physics - Magnetic Forces on Moving Charges - Direction + Magnitude (4 of 6)

Visit http://ilectureonline.com for more math and science lectures! In this video I will calculate the radius of the motion of a proton in a chamber with a magnetic field.

From playlist PHYSICS - ELECTRICITY AND MAGNETISM 3

Video thumbnail

9. Atoms V and Atoms in External Fields I

MIT 8.421 Atomic and Optical Physics I, Spring 2014 View the complete course: http://ocw.mit.edu/8-421S14 Instructor: Wolfgang Ketterle In this lecture, the professor discussed atoms without external fields and atoms in external magnetic fields. License: Creative Commons BY-NC-SA More in

From playlist MIT 8.421 Atomic and Optical Physics I, Spring 2014

Related pages

Rydberg constant | Proton | Deuterium | Flavour (particle physics) | Perturbation theory (quantum mechanics)