Red sequins (red blood cells) - enough to fill 40mL of a 100mL measuring cylinder
• Glass or plastic beads (white blood cells, platelets) - the ratio is 1000 rbc’s for every wbc and 100 platelets – estimate rather than count!
• 100mL water • yellow food colouring • cola • clear plastic cup • measuring cylinder
Method:
• Create the plasma by adding a few drops of yellow food dye and cola to water to make 100mL in the plastic cup.
• Add the red sequins and beads to the cup and mix all parts.
• Pour the mixture into the measuring cylinder.
• As the mixture settles the “cellular” components appear to be suspended in the plasma.
or this one:
You will need:
• 1/2 cup water • 1 tablespoon cocoa powder • 3 or 4 tablespoon corn syrup • 1/2 to 1 teaspoon red food coloring • 2 drops yellow or green food coloring (optional) • container for mixing • mixing implement (spoon, stick etc) • tissues
Method:
• Mix the cocoa powder thoroughly into the water before adding the other ingredients - it may help to use warm water.
• After adding the rest, blend the concoction well, and then wait for it to settle a bit.
• Either skim the bubbles & chocolate scum off the top with the edge of a tissue, or pour the mixture into another container. The longer it sits, the more the cocoa tends to settle to the bottom, which oddly mimics the effect of real blood separating.
• If you splatter this mixture onto cloth, it makes neat two-part marks that dry into pretty convincing bloodstains.
• If you let it run from a victim’s mouth and then let it dry, the blood darkens and cakes to the skin in much the same way real blood does.
All taken from
No comments:
Post a Comment