When calculating the mass and missing mass of the uni verse, do the calculators take into account the mass/missing mass of the microscopic and their interactions, as well as the massive and their interactions?
Is it right to say that; in every direction that we look into the sky from earth, we are looking into the past? Does that make our vantage point always in the present? Can there be no direction which we look at that is not in the past?
Sometimes, but not always when walking I get real bad shin pains, enough pain in fact to make me halt. This sometimes happens on the way to the gym, where after an hour or so on the cross trainer when I walk home the pain is never there!
I have a collection of DC model railway track which includes one piece whose behaviour has me completely stumped.
The section has one rail with a break in it, and has an electrical contact from either side leading into a metal box. In theory, this is a diode. It is supposed to allow current through in one direction but not the other (to prevent trains from accidentally running off the end of the line).
Even from reading the title of this article, you get the gist that your left ear is better at listening to music, while your right ear is the dominant ear when it comes to comprehending speech. Since the rap genre is mostly composted of lyrics with an addition of actual music (sounds, bass), would that mean the listening to this type of music with your right ...
if I threw a mains powered electrical device into a bath the effect on a bather would be lethal. But if I threw the same device into a swimming pool, does the larger volume of water decrease the effect of the voltage/current/amps? At what point does electricity stop becoming dangerous in water?
(the above scenario is assuming the current hasn't tripped any fuses or circuit breakers to cut the supply)