@LucyMeadow no problem! Top antonyms for travel light (opposite of travel light) are pack heavy, travel with too much stuff and not travel light. How is this practice viewed? cacophonous. Close. This implies that the author is talking about 5:00 AM. Adjective (of food or drink) Opposite of low in fat content, and hence low in calories and conducive to weight loss. So if you slow them down a little bit so that one year passes for them while 1000 years pass on earth, they could still only accomplish in one year what we did in 1000 years. Read all about it here. Login or Register. Thus for any observer the distance between two light pulses which propagate from one point in opposite directions grows as $2c \cdot t$. If you could look in the window of a space ship full of people going at light speed from earth, even if you looked at them for 1000 years of earths time, everyone inside would appear frozen. Two massless “cars” traveling in the opposite direction. Cheap lesson – and we weren’t caught out again. So what you're saying wasn't around then, and Einstein himself was misconceived. We had the ‘select pass’ which lets you travel in 2-4 bordering countries of your choice, for a specific number of ‘travel days’. See my answer below or this link: +1, despite there being 12 answers, this is essentially the only one that actually answers the question, correctly. Knowing you have to be mobile and flexible is a great incentive for lightening your load. Light can also describe a low calorie or low sugar version of something else, especially in a product name. An observer on A can see B and measure that B is moving away at close to the speed of light, but since C is moving away from A at well over the speed of light, no light from C will ever reach A, so from observation point A, C is invisible and seems to not exist. Example: Someone could not take a trip from earth and travel at near c for 3000 earth years, and come back having knowledge that would take 3000 years on earth to aquire. So, the magnitude of v would be, using the same rules as before, $v = sqrt((2c)^2+(2c)^2+(2c)^2) = sqrt(12c^2) = +/-3.46c$. #Beijing ended up being the opposite of what I had heard! Can we do it? So after a brief scan of the water for ripples, I catch up to him striding up the creek! Can horn be used as a substitute for greenhouse glass? Here is a helpful trick to remember light vs. lite. Last month my mother-in-law embarked on a 6 week trip to 6 countries at the lively age of 69. Lucy, might I add, why not just ask this question with a beam of light moving at speed c in one direction, and a train with an observer moving with 0.5c in the oposite direction? My first thought was that the opposite of "traveling light" would be to "over-pack". In fact you can find instances opposite direction light beam as recently as 10 years ago.