Use one hand to hold the red end of the tape so it is even with the child's head.

Just place the red end against your skin and press the blue end.

The same rule about the red end of the ribbon being closer to the power applies here.

"These algae work best at the red end of the spettrum."

Also you can see the "red" end by looking at the burners on an electric stove.

Likewise, as a star moves away, its lines are shifted toward the red end of the spectrum.

The red ends of their cigarillos glowed in the dark.

When the cigar was going good and hot he pointed its red end at me.

Rhino took the cigar out of his mouth and pointed the red end at the girl.

If the red end were worn away, you would say it was mostly blue, though a little red.