Quick Answer. HowStuffWorks explains that food poisoning often occurs when a person eats spoiled food. Common symptoms of food poisoning are stomach pain, diarrhea, nausea, vomiting and cramping.
Confusion continues over coolant colors for cars. Of course, there is still the good old green stuff, but there is also orange, yellow (gold and amber), red, pink, blue and, if you mix the wrong things together, brown. Despite the rainbow of colors, all antifreeze starts out colorless.
When you buy a new bottle of brake fluid, it looks almost clear with a bit of yellow tint to it. Whether it is DOT 3, 4 or 5, all brake fluid is pretty much the same color. While you can't expect that it will remain this color for five years, it should still be somewhat clear when you look into the brake reservoir.