Science related TED talks are often good examples how to engage an audience and communicate your message. The audience for TED talks has diverse interests so it’s great to see when they really appreciate a novel or solid presentation.
Here’s one example of each. The first is by virtual magician and Techno-illusionist Marco Tempest and is about Nicolas Tesla and is a must-see (and only 6 minutes long), http://www.ted.com/talks/lang/en/marco_tempest_the_electric_rise_and_fall_of_nikola_tesla.html. (If you have time check out Marco Tempest’s video of Making of “Nikola Tesla in Sound and Light”, http://vimeo.com/43684443.)
The second is a talk by a scientist about a new kind of battery (the missing link to renewable energy), http://www.ted.com/talks/lang/en/donald_sadoway_the_missing_link_to_renewable_energy.html. He gives a good clear explanation although he likes using the occasional big word in his narrative.