EXAMS AND ME

Wednesday, 21 October 2026

Canary Girls

TNT

Yellow Dye To Boom

Canary Girls

During World War I, TNT returned to the public eye in a very different dye-like fashion: turning factory workers' skin and hair a vibrant yellow/orange hue.

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Black Piedra

Superficial Mycoses

Piedra

Black Piedra

Hard Black Nodules Around Scalp Hair

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Question Mark Shaped Bacteria

Animal Urine Contaminated Water = Leptospira Interrrogans

Leptospira interrogans has a long, thin, helical body with tightly coiled turns and one or both ends bent into a distinct hook that resembles a question mark.

Question Mark Shaped Bacteria

Bacteria Does Not Give Answers To Questions

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Question Mark Shaped Bacteria

Animal Urine Contaminated Water = Leptospira Interrrogans

Blast From The Past: Light Bulb

On October 22, 1879, Thomas Edison and his research team at Menlo Park, New Jersey, achieved the first successful test of a practical incandescent light bulb.

Using a carbonized cotton thread filament inside a high-vacuum glass bulb, the prototype successfully glowed for 13.5 hours.