If there are no trees tsunami will be in front of you or earthquakes can shake you or the whole world will be sinking in front of you ....

No I don't think so because we are hitting the potato.but the potato will not stay on my wrist so I can't tell...!!!!

I think the first spacecraft is invented by 'jules verne' in 1865

14th december,1547

South Africa is +2 hours ahead of England in winter and +1 in summer (last Sunday in March through last Sunday in October). 

It travels at the speed of light! Which computes to 1 second to travel approximately 300,000,000 metres (186,282 miles) when travelling through space. It takes about 8.32 minutes for the Sun's light to reach the earth. so we can not say that light has an exact time to travel one mile.