Physicists say - speed of light is always the same regardless of our own speed - explain?

can someone explain the following illustration to me ? -------- 'When we follow the beam of light in a very fast rocket moving at 100,000 km per second. How fast is the light beam moving away from us? Common sense tells us that it is moving away from us 300,000 km minus 100,000 km per second. In other words, the light beam is 200,000 km per second faster than us. Wrong! Remember that the speed of light is always the same regardless of our own speed. From our rocket we would see that the beam of light is still moving away from us at 300,000 km per second! Likewise, if we were moving towards the beam at a very high speed we would still see the light coming at us at 300,000 km per second!' --- how is this possible ---?????

What is causing my high pH in my tank?

obviously your tap water has a high pH which is why the tank water is high ... there is not much you can do if that is your tap water ... and i have read on different websites that frogs can tolerate up to 7.6 to 7.8 pH which is only 0.2 - 0.4 from 8.0 pH ... and the frogs are not trying to get out ... they adjust to the pH ... i don't think it is anything in your tank, it is just your tap water ... i too would not use any chemicals to adjust the pH but i might add a big old piece of boiled driftwood ... that would naturally lower the pH a bit ... and not using any chemicals, i am hoping you do not mean you do not use water dechlorinator ... water these days has chlorine and chloramine and leaving the water to sit out will evaporate the chlorine but not the chloramine which is just as detrimental to the fish as chlorine ... that might be a problem in your tank ... i also have a frog tank and the only difference is i have sand not gravel (not that i think that has anything to do with it) so i can not see what you have in the tank increasing the pH ... i would try a piece of aquarium driftwood (boil well so it does not discolour your water) and see if that helps at all ... my friend has a frog tank as well, 2 in a 6 gallon, and she has the opposite problem, her pH is too low ... the frogs adjusted and she has had them in low pH water for over a year ...

My fish tank water is cloudy after using water clarifier.?

Okay, i used a water clarifier on my fish tank caus it was cloudy but now it's even more cloudy, i used Tetra aqua waterClarifier. please help! and i have no fish or anything in it i have had the tank for 2 weeks with nothing but gravel and fake plantss Thank you !

Will my gf's new pony skin shoes be ok in the rain?

My girlfriend has just bought some pony skin shoes from kurt geiger, can she wear them in the rain? If not could she spray them with suede protector?

What is the most overrated Big city in your opinion?

Mine is San Diego. The traffic is ridicilous. The cost of living is high. The females are stuck up and act like bigots. The cops are bigots. It cost $20 dollars to get in a club out here. The clubs out here don't even jump. San Diego is overated in my opionion.

Should I eat this for dinner after a workout?

I just worked out, and should I just have tomato soup or with a chicken and mushroom tart? I had pb&j for breakfast and sashimi for lunch. Yogurt in betwween.

What was microsoft's strategy in overtaking the ps2 with the xbox and xbox 360?

World domination? :) They make tons of dough from the games they sell even if they don't make money from the console itself.