If I recall rightly, hydrogen leaks out of the balloon so fast because of the change in pressure at high altitudes. Not a problem at lower ones, but way up I seem to recall that it is.
This is an unmanned device so it doesn't have the same safety concern. Also at the cruising altitude there is so little oxygen it's probably as safe as helium at that altitude.
I'm developing a notification service that lets people sign up to be notified when something they are interested in occurs, and most importantly only when that occurs. The goal is to be agnostic and let people be notified any way they like (email, app notification, SMS, phone call, letter in the post box etc) and for developers to be able to send notifications for a wide range of specific events (e.g. tickets on sale for this band in this city) using an API in their language of choice.
I'm really looking for feedback on what to work on next. Is this a service that you could use in your company? If not, what's missing?
The next directions I'm looking at are:
0. Improving the look of the website.
1. Adding API support starting with REST.
2. Adding more notification methods (e.g. SMS).
3. Adding ability to create multiple-fire notifications and parameter based notifications (e.g. notify me whenever the weather in TOWN is > TEMPERATURE).
4. Adding built-in notifications such as weather, stock, etc.
There are some things that some people can solve in a given time frame, which other people could never solve. For example, could you have ever invented calculus or discovered relativity? What about someone less smart than you? That's an even more extreme example than the one given.
Moving back to programming, debugging specifically, I've had people spend weeks stuck on a bug, only for another programmer to find it in hours or days.
I'm working on trying to make code reviews easier, faster, and more powerful. Adding rule based automation to check for common errors.