What hides this stereogram?

Stereogram - 3D Image

#brainteasers #stereogram #3Dimage

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A Brushing Pal

I am looking for someone to brush their teeth with me.
I found out that 9 out of 10 dentists say brushing alone won't reduce cavities.

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Dewar shows objects cooled with liquid air

In 1895, James Dewar demonstrated the intimate connection between phosphorescence and photographic action of the electric light on bodies cooled to the temperature of boiling liquid air. Presented at the Royal Institution, these experiments were reported as “very remarkable.”

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