Not that many, and not that huge actually. For road bikes it's mainly lighter materials and indexed gearing. For MTBs it's suspension elements.
kuf
tacos
The bicycle is still around, the only thing it's been replaced with are newer bicycles.
For the simple reason that no bicycle fit for an elephant has been invented yet.
the futher improvements that will be made to the ipod could be water proof and no headphones needed
It was said that 3000 years ago the Egyptians sketched the first bicycle. It's been claimed that Leonardo da Vinci sketched a bicycle in 1490, but that has been proven to be a forgery added later.
Performance improvements have been made in WinZip 7 including improved daily statistics performance, and a smaller navigation widget. A number of security fixes have been implemented to.
different materials
everything has changed on the ipod
One of the improvements that has been made to the calculator since the invention of the device is that calculators are much smaller now. Another improvement is that many of them are solar powered.
The 21st century has already seen tremendous innovations and improvements in everyday lifestyle changing and evolving side-by-side. It is probably the most profound change that has been brought about by innovations from around the globe.
I will not answer your question!