The magnification ability and clarity of lenses have changed considerably.
Calender subdivisions do not recognize any timescales past millennium. Anything past millennium is simply referred to as a millennia (Plural form). Although, you could incorporate the ICS timescale with it, which would have these four following millennium:Age (1 million years)Epoch (10 million years)Era (100 million years)Eon (500 million years)
Burning fossil fuels. It took 100 million years to make them & we've burned about half in 100 years.
if you are observing a star 100 light years away, you are looking at it as it was 100 years ago.
100 years
To communicate with such a civilization it would take 100 years to send a message and another 100 years to get an answer (not counting the time it takes them to think of an answer)
Communication has changed very much in the past 100 years.
it hasn't
I might be wrong, but I dont' think that it has!
causes of death have changed over the last 100 years due to many reasons, such as a more widespread recognition of illnesses
computer, tv, car, internet
They have become even more lazy and belligerent
It has gone from horse-powered to engine-based vehicles.
Socks, t-shirts & underwear.
It Has Gone From Telegrams and letter brought by pigeons to phones e-mails etc
It is become smaler and smaler and in 10 years it would be so small you can wear it like a watch
new Britain has been changed over the past 100 years.Like the speed limit people get into so many accident in the past and in the present so they keep adjusting the speed limit according to what they see in drivers.
today, the internet is often used to reach readers and viewers