In the second half hour, when I was talking about the electromagnetic spectrum, I was a little nervous/excited and adopted a really college-lecture-level style and vocabulary and a lot of the audience (high school age) was obviously starting to tune out.
After I did the optical illusions and miracle fruit demo, which brought me about 2⁄3 into the presentation time-wise, I had a 5-minute intermission for people to just chat with each other, then continued. Their attention then seemed pretty steady for the last third.
I guess there are enough neat mind-pwns sprinkled throughout the presentation to keep people entertained, even the ones who self-reported that it went way over their heads.
In the second half hour, when I was talking about the electromagnetic spectrum, I was a little nervous/excited and adopted a really college-lecture-level style and vocabulary and a lot of the audience (high school age) was obviously starting to tune out.
After I did the optical illusions and miracle fruit demo, which brought me about 2⁄3 into the presentation time-wise, I had a 5-minute intermission for people to just chat with each other, then continued. Their attention then seemed pretty steady for the last third.
I guess there are enough neat mind-pwns sprinkled throughout the presentation to keep people entertained, even the ones who self-reported that it went way over their heads.