When a Texaco oil rig mis-triangulates its drilling position and hits a nearby salt mine full of workers, an entire lake complete with homes, barges, and land drain into the enormous sink hole. Soon the river reverses direction and brings in water from the ocean, swallowing up more land.
Sunscreens and Sunblocks that say they block UVA may actually only block a tiny fraction of it because SPF ratings only rate against UVB; most sunscreens Absorb UV radiation while only two ingredients actually reflect it away from your body and only one ingredient covers the entire UV spectrum; and SPF ratings over 30 are just marketing hype!
Even the best spellers can fall victim to typos, and bad spellers can really use the help. With this feature built into the operating system on every Mac already, you can check your spelling when replying to online posts, blogs, and forums.
Scientific American's 60-Second Science Podcasts are so short that you've got to either hang around to hit Play after each one in iTunes, or build a playlist. A Smart Playlist, though, is automatic and removes podcasts that have already been played in iTunes or on your iPod or iPhone.
