Hacker News Reader

Comment by moomin | Hacker News Reader

Not to be funny, but it seems like every other day has another "hyperloop uses acoustic waves" article. It's a good guess, but it doesn't even contain new speculation (another article went into detailed theorising about how cars would accelerate and decelerate).

Seriously, until we have a solid info, or even a new guess, can we lay off Hyperloop?

View on HN

I wouldn't mind the article if it contained some kind of real analysis as to feasibility from a physics and engineering perspective. That type of analysis would be interesting independent of hyperloop.

Worst of all this article is just a rip-off (a paraphrasing) of another article. He is kind enough to point to the original article, but he isn't adding anything new, just putting the old wine in new bottles.

No, it's not. The pointed-to article says that if you travel with the density peak of a sound wave, you get reduced drag, but you'll need some other system (like a railgun / gauss gun) to actually provide propulsion. This article says "I bet it's more than that, I bet the sound waves are actually providing the driving force like in this cool YouTube video of acoustic levitation."

Like with apple iPhone / iPad speculation, it garners pageviews. If this were forbes.com you would call it blogspam.

Have you seen better discussion than the link provided by the OP? http://charlesalexander2013.wordpress.com/2013/07/18/hyperlo...

It's easy to get excited, but I remember the hype surrounding the Segway.

Reply on news.ycombinator.com