You ask questions in the form of experiments.

CNN: Commentary: Heroes in lab coats

Flavonoids and flu: Two plant-based flavonoids disease-fighting compounds found in many foods significantly impaired the infectious activity of H5N1 avian-flu virus in laboratory experiments and may form the basis of future influenza treatments, a report in Antiviral Research says.

WSJ: Sleep's Surprising Effects on Hunger

Harvard University researchers conducted experiments on mice using oligomers, a soluble form of amyloid-beta protein, which is the key compound in brain plaque and a hallmark of Alzheimer's.

WSJ: Why Young Children Don't Notice Coming Cars

Some experiments claim to have seen signals of dark matter in the form of annual modulation.

BBC: Dark Matter: Experiment to shed light on dark particles

However, he admits that there is always the chance that these experiments may find nothing at all - and dark matter may not be in the form of WIMPs.

BBC: Dark Matter: Experiment to shed light on dark particles