Historically, science has made great strides because someone cared to ask,
how much? This is my concerted effort towards numerical literacy in the modern
world. Assigning tangible quantities is immensely effective towards understanding
the metaphorical "gravity of the situation".
All values are approximate and meant to facilitate back-of-the-envelope calculations.
I highly recommend Measurement: A Very Short Introduction for a short history of measurements, and a crash-course
in how different fields have evolved in assigning numbers to phenomenon.
Neutrophil (White Blood Cells) - 12-15 microns
The Great Pyramid of Giza - 150m high
Eiffel Tower - 300m high
Burj Khalifa - 830m
Golden Gate Park - 3 mi
ISS Orbital Height - 250 mi / 420 km
Farthest object captured by the Hubble Telescope GN-z11 - 13.4 billion light years