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21 life-saving facts that everyone should know. Shutterstock Just about everyone knows that you should never text and drive, and that you should stop, drop, and roll if you catch on fire.

21 life-saving facts that everyone should know

But life can also throw situations at us that we don't have a quick, handy response for. Commenters in a recent Quora thread about life-saving facts offered their best tips, which are easy to remember and could have a huge effect if you ever find yourself in a dangerous situation. You might want to save these for later. Your brain can't handle walking and using your phone at the same time — so look up. How to Fix My Lava Lamp. The wax “lava” in lava lamps flows upward and back down because the wax and the water solution is closely balanced in density and buoyancy.

How to Fix My Lava Lamp

The heated wax is lighter than the saline water solution, but after cooling and contraction at the top of the lamp bottle becomes denser again. Two very common problems that come up with a lava lamp are cloudiness in the water and “lava” that has stopped flowing. Fortunately, decades of trial and error since the lava lamp was invented in the ‘60’s has zeroed in on a handful of solutions that have proven successful. “Dead” Lava Decide whether the lava lies flat or is shaped like a dome.