Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

I use echolocation myself,

> Isn't it just a matter of listening to the ambient noise in your environment. open space sounds different to a closed room.

Yes. Absent of light and suitable noise, you make the noise yourself. And this is something instinctive to me, so i would assume other people could do it, too.



Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: