This site contains some beautiful photos of night-time skies around the world. A handy New Moon tool tells you when the next new moon will be, for the best stargazing opportunities.
The Memory Palace is a storytelling podcast and public radio segment about the past. It was named a finalist for a Peabody Award in 2016.
iFixit is a wiki-based site that teaches people how to fix almost anything. Anyone can create a repair manual for a device, and anyone can also edit the existing set of manuals to improve them. Individuals can share their technical knowledge with the rest of the world.
When Steve Jobs presented the first iPhone in 2007, it was of course the device that gained center stage. The software that powered it (running on the same foundation as Mac OS) was only mentioned briefly. Only several years later would it occupy its rightful place as a major brand by itself.
This handy tool helps you in your persuasive essay writing. Answer a few questions, and Thesis Builder will propose a thesis statement sample, and provide a handy outline for writing the rest of the essay.
Noteflight is a great way to create, store, listen to, print, search and share notated music online. If you are a composer, you can use Noteflight to author and manage your compositions. If you are a performer, you can use Noteflight to create and share sheet music that you like to play. For all the teachers and students, you can use Noteflight to communicate and collaborate in learning music.
What's the name and the height of that mountain? Find out with PeakVisor. PeakVisor includes a high-tech 3D compass and an altimeter that accurately measures the elevation of any mountain peak that comes into view of your smartphone's camera.
How long does food really last past its expiration date? StillTasty lists some good tips for storing food to maximize its edibility.