Long-distance phone calls Long-distance message transmission DTP Photography Short-haul flights Electric lighting (LED uses less than 10% of the power of i

Long-distance phone calls Long-distance message transmission DTP Photography Short-haul flights Electric lighting (LED uses less than 10% of the power of incascendent bulbs) Travel, in general (remember luggage did not have wheels until the 70s because it was expected that a traveler would have servants to carry their luggage)