Add me to those who have been through the physics demonstration. So I’ll give it odds of, let’s say, 99.9999%.
But I also don’t like how most physicists think about this. In The Feynman Lectures on Physics, Richard Feynman taught it as energy and mass are the same thing, and c^2 is simply the conversion factor. But most physicists distinguish between rest mass and relativistic mass. And so think in terms of converting between mass and energy. And not simply between different forms of energy, one of which is recognized to be mass.
But let’s take a hydrogen atom. A hydrogen atom is an electron and proton. But the mass of a hydrogen atom is less than the mass of an electron plus the mass of a proton. It is less by (to within measurement error) the mass of the energy required to split a hydrogen atom apart. I find this easier to think about within Feynman’s formulation than what most physicists do.
Add me to those who have been through the physics demonstration. So I’ll give it odds of, let’s say, 99.9999%.
But I also don’t like how most physicists think about this. In The Feynman Lectures on Physics, Richard Feynman taught it as energy and mass are the same thing, and c^2 is simply the conversion factor. But most physicists distinguish between rest mass and relativistic mass. And so think in terms of converting between mass and energy. And not simply between different forms of energy, one of which is recognized to be mass.
But let’s take a hydrogen atom. A hydrogen atom is an electron and proton. But the mass of a hydrogen atom is less than the mass of an electron plus the mass of a proton. It is less by (to within measurement error) the mass of the energy required to split a hydrogen atom apart. I find this easier to think about within Feynman’s formulation than what most physicists do.