Where do you get your inspiration for your travels?
Mine are currently all based around work, so the cities of Europe are kind of up there on the list. After that it is places where I can also visit people I know on the way through.
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If gravity travels at the speed of light, how does it escape a black hole?
Everybody seems to have signed on to the absurd notion that space and time can be distorted. Einstein assumed that but it is not necessary in any theory of relativity including GR. It is much more reasonable to assume that it is the material things that distort when they move. With the later assumption we can understand why it is that the distortion happens.
The most elemental things in matter are held together by stuff that must always move at the invariant speed of light. Given this Quantum theory assumption Quantum theory predicts relativity phenomena unless we thwart it by inventing virtual particles.
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If a fast travelling astronaut travels slightly into future due to time dilation, does it mean he travels back in time when he is reunited with his earth bound friends?
No, the moving forward in time is a permanent thing. Most physicists think that there is no mechanism available for traveling backward in time, and that it may be impossible in principle. But that doesn't stop science fiction writers from thinking about the consequences of backward time travel, and physicists from exploring all of the possibilities of achieving it.
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Do you keep the maps and brochures from your travels?
I kept all the maps and brochures I got from Hong Kong and Seoul, SK. They're very informative kasi, especially the subway maps. Useful din lalo kung may humihingi ng info on how to tour these places.
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What do you collect from your travels?
I usually accumulate tshirts and little trinkets. I like to get postcards to put them in my photo albums, and to keep things like tickets etc...
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