Physicist suggests speed of light might be slower than thought

This image shows the remnant of Supernova 1987A seen in light ... theorised 80 years ago. Here's a question… how long does it take sunlight to reach Earth? This sounds like a strange question, but think about it. Sunlight travels at the speed of light.- French physicist Louis Victor Pierre Raymond de Broglie ... any speed. Light did not have rest mass: it is either moving at a certain speed (which may vary depending on the environment), or does not exist. By analogy with the relation between the ...
It's a Molecule. No, It's More Like a Wave.

This means that something with a tiny mass moving ... an electron has a relatively large mass and momentum. This means that the wavelength of an electron, according to de Broglie's formula, is only about one-10,000th the wavelength of a photon of light ...When Is a Composite Object a Particle?

A single photon with energy less than the ionization potential– basically anything with a wavelength longer than a couple hundred nanometers, in the deep UV range– might move an electron ... why these composite particles have a de Broglie wavelength ...On the Quantum Mechanics of Electrons in the Brain; Free Will

But the picture tells us nothing about the speed of the train ... and particles such as electrons were shown by the de Broglie brothers to have a wavelength when they travel through space. But you might speculate that an electron must have an exact ...

- How fast is the electron moving relative if the mass of an electron is 9.11x10-31kg. if the broglie wavelength for an electron in a hydrogen atom is 3.31 x 10-10m?
- If a proton and an electron have the same de Broglie wavelength, which of the following statements is correct? a. The electron has the higher speed? B. The proton has the higher speed. C. They have the same speed. D. Any of the above is true, depending on?
- What is the momentum of an electron with a wavelength of 456nm?
- What is multiplied by a factor if the momentum of an electron doubles its de broglie wavelength?
- Can you find the de Broglie wavelength for an electron in the n = 4 state of hydrogen?
- Can you calculate the de Broglie wavelength, in pm, of a hydrogen atom traveling 445m/s?
- What is Planck's constant? What is the formula for de broglie wavelength?
- What is a matter (de Broglie) wave?

- An electron has a de Broglie wavelength of 240nm, What is ...An electron has a de Broglie wavelength of 240nm, ... c = velocity of light = .03 x 10¹º m/s ... De Broglie wavelength problem: electrons speed?
- Calculate the de Broglie wavelength of a neutron moving at ...Calculate the de Broglie wavelength of a neutron moving at 2.00% of the speed of light. ... wavelength lambda for an electron moving at a speed of?
- What is the wavelength of a 4.80-eV photon and the de ...... the de Broglie wavelength of a 4.80-eV ... a 4.80-eV photon and the de Broglie wavelength of a 4.80-eV electron? ... Light Clock Thought ...
- Matter wave - Wikipedia, the free encyclopedia... of a particle and is also called de Broglie wavelength. ... duality of light in 1905. Louis de Broglie hypothesized that ... an electron's speed) ...
- The deBroglie Equation: Relating a Particle's Energy to ...Problem #5: An atom of helium has a de Broglie wavelength of 4.30 x 10¯ 12 meter. What is its velocity? Solution: 1) Use the de Broglie equation to determine the ...