TIL:
"thagomizer" is now an actual technical term used in paleontology, referring to the distinctive collection of tail spikes on a stegosaurus that do, in fact, appear to have been used as weapons.
(This was *not* the case when Gary Larson first coined the term in 1982. Evidently, there had […]
mastodon.murkworks.net
Original post on mastodon.murkworks.net
![How to draw this:
From a point in the center of the page
draw two yellow-dashed rays sloping left-up and right-up at 45° to the edge of the page. Mark the right angle between the two rays. ([center] pt)
On each of these mark a point near the corner right before it runs off of the page ([upper-left] pt and [upper-right] pt)
From [upper-right] draw a downwards-left blue arrow, slope 3/2, to a point directly below [center],
label that "moving Now snapshot"
label the destination "Here and Now"
Draw up-left (slope −3/2) blue arrow from "Here and Now" to [upper-left]
label that "stationary Now snapshot"
Draw black segment from [upper-left] slope −2/3 to intersect at right angles with downwards arrow,
label that "1-unit-up Stationary Person"
label intersection "where 1-unit-up Stationary Person is Now according to Moving People"
Draw black segment from [upper-right] slope 2/3 to intersect at right angles with upwards arrow,
label that "1-unit-up Moving Person"
label intersection "where 1-unit-up Moving Person is Now according to Stationary People"
Draw 2 short black segments through "Here and Now"
one slope 2/3 labeled "Moving Here"
one slope −2/3 labeled "Stationary Here"](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:q6wierekuzwppbmjfr2qp2cw/bafkreigssv6q6xzr6aw5q4po6taloxzlsnnpmlvuoulshwprnifdyegkya)
