Randall Munroe of XKCD put together this fascinating chart of the “ionizing radiation dose a person can absorb from various sources;” from using a cell phone to CT Scans to being at Chernobyl and Fukushima when disaster struck.

Munroe received help from Ellen, a Senior Reactor Operator at the Reed Research Reactor, and you can find a list of the sources used here.

As far as accuracy, Munroe also adds:

“It’s for education purposed only. If you’re basing radiation safety procedures on an internet PNG image and things go wrong, you have no one to blame but yourself.”

Photonicinduction is an electrical engineer who has been pushing electrical appliances to their limits for our viewing pleasure since 2008, but even he seems to be impressed by the subject of his latest video: a 20,000 Watt light bulb.

20,000 Watt Halogen lamp used for large scale films sets, we get a close up look and full power test.

This video is about gravitational waves in the weak field limit as discovered by the LIGO collaboration, explained by parallels to electromagnetic radiation, sound waves, water waves, etc.

This theory is based on just one equation (E= ˠ M˳C² )∞ and just two simple postulates:

1. Is that the quantum wave particle function Ψ or probability function explained mathematically by Schrödinger’s wave equation represents the forward passage of time itself

2. Is that Heisenberg’s Uncertainty Principle ∆×∆p×≥h/4π that is formed by the w-function is the same uncertainty we have with any future event within our own ref-frame that we can interact with turning the possible into the actual!

This theory is based on just one equation that can be seen as part of an objective reality (E= ˠ M˳C² )∞ the Lorentz contraction of space and time is between the energy and mass. The greater the energy the greater the contraction of space and the slower time will run. Mass will increase relative to this and each ref-frame can be seen as a vortex in space formed by the rate that time flows. The brackets represent the boundary condition of the ref-frame formed by the energy and the infinity symbol represents an infinite number of ref-frames that make up our Universe.

The potential infinity and reference frames of this theory are represented mathematically by the Set Theory of Georg Cantor. This can explain many of the paradoxes of infinity.

If you could travel back in time, and you killed your grandfather, would you be killing your future self? What do physics, complexity theory, and computer science have to say about this famous murderous time-travel paradox?

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