If hydrogen were to replace fossil fuel entirely, the researchers estimate that 60 to 120 trillion grams of hydrogen would be released each year into the atmosphere, assuming a 10-to-20-percent loss rate due to leakage.
The Fire TV can have a wired connection, the Fire TV Stick is wireless only. The Fire TV has Dolby Digital Plus & 5.1 surround sound, the Fire TV Stick is Dolby Digital Plus only. The Fire TV can do all Amazon games including hi-res video games, the Fire TV Stick only has a limited set of games it will play.
Voice remote. The Fire TV comes with a voice remote whereas the Fire TV Stick comes with a standard Fire TV remote. For an additional $10, you will be able to get a voice remote with the Fire TV Stick as well. Memory. The Fire TV is equipped with 2 GB of memory and 8 GB of storage.