1 light hour like how a light year is how far light travels in a year.
1) Yes, but never more than a dozen or so at a time. 2) You may be thinking of the effects of relativity. If you were to travel through space at velocities near the speed of light, the theory of relativity suggests that you would subjectively experience the passage of time differently than everyone else, who sensibly stayed behind on Earth. Thus, you might travel for (let's say) 50 years in your perception (in a tin can? boring!) and return to find that (let's say) 500 years had passed on earth, everyone you know is dead, you yourself are at best a nearly-forgotten legend from another age, and Morlocks (or perhaps damn dirty apes) are now running the planet. For these reasons, it is not recommended to travel near the speed of light for any great length of time. Don't say I didn't warn you. 3) Microgravity environments are difficult and stressful for the human organism, which evolved to function in 1g environments. So far, human space vehicles and stations are poorly shielded against cosmic and solar radiation. At our present level of technology, living in space can only be seen as a stressful and risky proposition. It would be fair to say that you would "age" much faster due to the rigors of space travel than you would taking it easy at home. If in the future space travel technologies somehow improve to the point where radiation, gravity, and other physical conditions mirror those on Earth more or less perfectly, I would assume people would age at the same rate there as here. if you were stationary yes if you orbit the speed of light your perception of time would change but you'll still age
Stars emit light through a process called nuclear fusion, where hydrogen atoms in the star's core are fused together to form helium, releasing energy in the form of light. This continuous fusion process enables stars to emit light and heat.
Cirrus clouds are light and feathery clouds that form high in the atmosphere. They are composed of ice crystals and are often seen on sunny days, indicating fair weather.
"Shading Science: Exploring the Impact of Sunglasses on Light Absorption"
Cirrus clouds are the types of clouds that form high in the sky. They are also white, feathery and look very light. They tend to come around when the weather is fair.
If light (as in photons) were in a vacuum, it would travel forever in a given direction.In reality however, it is far more probable that light will experience disturbances (absorption, reflection, refraction, etc..) as it moves through space - thus, it's distance of travel is limited to some finite distance. I do not think that there is any good estimation for this realistic finite distance. Clearly, this finite distance depends on the situation of the light being transmitted, direction and regions of space through which it will travel.add Recent observations of distant red-shifted astronomical objects indicate that their light was first emitted about the time of the Big Bang. So forever is a fair approximation. [Multiplied by the speed of light of course.]
It was designed for a world fair in seattle, yes.
Fair = Equitable Fair = Light colour of skin and hair Fair = A festival Fair = Peasant as in "Fair weather" Fair = Not good or bad (How are you? Fair.)
The space needle was build in the 1940's for the world fair. The theme of the fair was the future. The person that build the needle wanted to make some thing that would make people of space. So he named it the space needle.
fair, light, flaxen, fair-haired, golden-haired
space
first world fair
The Space Needle was built as an attraction for the Seattle Worlds Fair of 1962.
Because waves, such as sound, need to travel through a medium, whether it be water, air, etc. Since in empty space, there is no air, therefore there is no medium to travel in, so sound cannot travel.Sound waves require a medium (solid, liquid or gas) to travel through. They do this by alternately compressing and rarifying the distanced between the atoms or molecules of the medium.
when they land , so they can communicate with each other. --- The term "Walkie Talkie" is a colloquialism which refers to a hand portable transceiver. Since every spacesuit is fitted with a hands-free transceiver then it is fair to say that they are always using one when suited up.
yes, "fair share" means you can use whatever available space on shared room.
It was built to celebrate the World's Fair.