Thiomargarita magnifica visible without microscope size

A bacterium can be seen without a microscope

Up To 2 Cm Long

The bacterium *Thiomargarita magnifica* averages about 1 cm in length and can reach 2 cm, making it large enough to see without a microscope.

Losing sleep can weaken the body's response to a vaccine

Sleep-deprived people can produce fewer antibodies after vaccination and have a weaker immune response than well-rested people. Sleep changes how the body responds to the vaccine; it does not change what is inside the vaccine.

Freud focused on religion's comfort, not truth

Sigmund Freud explained religious belief by the comfort it could offer, rather than by whether it was true. He thought belief in a supernatural protector could ease fear of nature, while belief in an afterlife could ease fear of death.

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Thiomargarita magnifica visible without microscope size

A bacterium can be seen without a microscope

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