We Fell For The Oldest Lie On The Internet

How long are all the blood vessels in the human body combined?

• 10,000 km

• 50,000 km

• 100,000 km

• 200,000 km

What was the main challenge faced when trying to find the original source of the blood vessel length fact?

• The number was only found in very old, hard-to-read books.

• Many sources quoted the number but didn't provide an original citation.

• The number was different in every source found.

• The researchers couldn't access any scientific databases.

When researching the total length of blood vessels, what was a key inconsistency found in how the number was used?

• Some sources said it was only for children, not adults.

• Different sources attributed the length to different types of blood vessels.

• The number changed significantly depending on the country of publication.

• The measurement unit (miles vs. kilometers) was often confused.

Who was identified as the author of the original source book for the blood vessel length fact?

• David Suzuki

• Steven Vogel

• August Krogh

• B. W. Zweifach

What was the initial estimated total length of capillaries in a human body, according to the early calculations mentioned?

• 10,000 kilometers

• 50,000 kilometers

• 100,000 kilometers

• 200,000 kilometers

Which scientist was the first to make a real estimate of capillary length based on experiments?

• David C. Poole

• August Krogh

• Thomas Crane

• Gregory Lewis

What is the current, more accurate estimate for the total length of capillaries in a human body?

• 1,000 - 5,000 km

• 9,000 - 19,000 km

• 50,000 - 60,000 km

• 100,000 km

Why did the incorrect estimate of 100,000 km for human capillary length persist for so long in various sources?

• It was a complex number that was hard to verify.

• It was a nice, round number that was easy to remember and seemed impressive.

• Scientists intentionally spread misinformation.

• The original source was lost, so no one could check it.