Three rain-gear-clad scientists crammed into a canoe and quietly paddled across a Guinness-colored lake. For six damp hours they meandered in a zigzag pattern from one shore to the other to gather a key piece of missing information—how deep is the lake?
The grips on your gumboots give way under foot as a slippery blade of seaweed threatens to plunge you off the rocky shoreline into the cold waters of the Pacific. But what kind of seaweed is to blame? Now, a new phone app can help you find out!