Making your own solar panels requires quite a bit of work. Woodworking knowledge and plenty of space is necessary.
It is possible to create a wax seal stamp with wood.
Glow in the dark water can be made with highlighters. A blacklight (UV light) is necessary to see the special effects in the water.
The “LifeStraw” personal water filter has been critically acclaimed for actually being able to purify freshwater sources and be cheaply mass produced.
Different colleges (even under the same system) charge different amounts for credits in the summer and winter.
I got interested in solar backup chargers for smartphones, so I decided to look up how helpful they might be to a home. It turns out that they can be quite useful, but are rather expensive. It is cheaper to make your own to severely cut costs, but this DIY project isn’t so easy. http://www.instructables.com/id/How-To-Build-A-Solar-Panel/
A friend of mine received a wooden wax seal stamp as a gift.
Wolfram Alpha is taking a shot at a very impressive goal: to produce a free-form, accessible database of all data represented knowledge. A computer that can answer all questions (in whatever form you input) with data.
https://www.mathway.com/ is a very helpful math tool. It can solve all major types of problems and even provide step by step guidance.
A lot of the people younger than me actually use Google+ as their primary social network. I don’t see much of other social networks because my group of friends and I are habituated to Facebook.
Working almost a full day without electricity in the workplace was rather difficult.
Watching one of my fellows in a moment of distress made me aware of a different side of his personality.
Suggested to download the Wolfram Alpha app. Decided to Google search it and ended up on their “about” page. http://www.wolframalpha.com/about.html
Listed as a useful tool on a newsfeed I monitor.
Conversation with my students reveal that many of them and their friends have full networks on Google+. Their networks include other kids from their schools and even neighborhood friends.