Two-way wrist radios are already WAY out of date. Today, you can get a bluetooth cell phone that you just leave in your purse or pocket. A tiny in-ear headset will allow you to communicate hands-free. You can get a bluetooth watch that will display caller ID information when your phone rings and give you some functionality to control the phone. Almost all cell phones now have really good voice recognition. You can get them with GPS built in, cameras, games, video recorders…
Not only have we done better than the wrist radio, we’ve done better than the Star Trek Communicator. I can tap the little button on my ear and say, “Call XXX”, and my phone dials the number and connects me. We can transfer text messages back and forth. I can connect to the internet if need be.
Cell phones today are way more capable than anything science fiction could dream up 30 years ago.
Technology right around the corner -
Carbon nanotube materials. Some scientists believe that carbon nanotubes are going to kick off a revolution in materials similar to what plastics did. Their properties are amazing. Stronger than any known material (specific strength 300X greater than steel), able to function as light emitters and solar cells. They can store amazing amounts of electricity, making them super-capacitors. A carbon nanotube car body could absorb solar energy in the daytime, and softly glow at night to improve visibility. It would weigh 1/10 of a current car body. You might even be able to turn your car into a big flat-panel display, so you could change your car’s paint job on a whim like desktop wallpaper. These products are already appearing - a bike strenghtened with nanotubes competed in the 2006 Tour de France. The entire frame weighed 2 lbs.
Nanotubes are a fantastic heat conductor. You could see heat pipe applications with carbon nanotubes that revolutionize the way we heat and cool our homes and offices. They could also make heat pumps more efficient in energy-capture devices like ocean thermal power and geothermal power.
The electrical conductivity and high strength could mean a revolution in power transmission lines and electrical circuitry.
There are already medical applications - nanotube lattices have been used as ‘scaffolding’ for building up sheets of artificial muscle from stem cells.
Plug-in Hybrids - Just around the corner. Soon you’ll be able to buy a hybrid car with an enhanced battery that will give it 20-40 miles of range on electric only. Plug it in at night, and if your commute is less than the range of the car, you’ll never start the gas engine. For many people, their gas engine may only start on rare occasions - like once a month or so. Plug-in hybrids will be on the market in 2009-2010.
In our lifetime:
Imaging of planets in other star systems - There are currently plans to launch several telescopes that will be capable of detecting earth-like planets orbiting the nearest stars. We will also be able to measure their atmospheres for oxygen and bio-markers. In the next 40 years we may also get a telescope array big enough to directly image some of those planets, showing us features the size of oceans and continents.
Diving into Europa - We may have a lander on Europa that digs or melts its way through the crust and into the ocean below, sending back imagery and data.