An unpopped popcorn kernel is known as an "old maid".
The M96 motorway is not open to the public, but has appeared in a television documentary.
The Triangulum Galaxy is probably the furtherest object visible with the naked eye. It is about 400,000 light years further away than the Andromeda Galaxy.
A square wheel can give a smooth ride on a bumpy road.
In medieval Europe, the barnacle goose was believed to be born from a barnacle. This allowed Catholics to eat it during Lent, as it was classified as a fish.
Ingesting silver or silver compounds can turn your skin blue - a condition known as argyria.
The highest unclimbed mountain in the world is Gangkhar Puensum in Bhutan. At present, mountaineering is prohibited in Bhutan.
In 1907 Dr. Duncan MacDougall weighed six of his patients while they were dying in order to determine the weight of the human soul, which he estimated to be 21 grams.
A spite house is an American term for an often impractical building constructed to annoy or aggravate the owner of a neighbouring property.
The cubewano58534 Logos has a satellite called Zoe, which is the only non-asteroid body in the Solar System whose name begins with the letter Z.
A cephalophore (from the Greek for "head-carrier") is a saint depicted carrying their head in their hands, signifying that they were martyred by beheading.
A cordwainer makes shoes - a cobbler, strictly speaking, only mends shoes.
The place on Earth farthest from the Earth's centre is the summit of Chimborazo (or possibly the summit of Huascarán).
The "paragraph sign" ¶ is more formally called a pilcrow; the "division sign" ÷ is more formally called a obelus, which has the same Greek root as obelisk.
Shells fired by the Paris Gun in 1918 were the first man-made objects to enter the stratosphere.
Borborygmus is the medical term for stomach rumbling.
Troll and Tor are Norwegian Polar Institute research stations in Antarctica.
The Stout Scarab is an innovative US automobile manufactured in small numbers in the 1930s and considered by some to be the world's first production minivan.
Petrichor (from the Greek petra + ichor) is the scientific term for the scent of rain on dry earth.
A rastrum is a five-pointed pen used to draw musical staves.
A hail cannon is an unlikely device that is supposed to prevent the formation of hailstones.
Before the publication of Charlotte Brontë's novel in 1849, Shirley was an uncommon - but distinctly male - name and would have been an unusual name for a woman.
The notion that duct tape was originally "duck tape" made from cotton duck is probably an urban myth.
Ground rollers are a small family of non-migratory near-passerine birds restricted to Madagascar.
A hypernucleus contains at least one hyperon (a baryon carrying the strangeness quantum number) in addition to protons and neutrons.
"In like Flynn" is a slang phrase meaning "having quickly or easily achieved a goal". The eponymous Flynn may be actor Errol Flynn or American politician Edward J. Flynn.
For your tireless and helpful work in the Reference desks. Jones2 10:55, 31 December 2006 (UTC)
The Reference Desk Barnstar
Thank you for your reply to my query at the Science Reference Desk regarding the History of Quantum Mechanics. Your contribution to the discussion was insightful, and helped me find the answers I was looking for. Thanks! FusionKnight (talk) 19:46, 22 January 2008 (UTC)
The E=mc² Barnstar
I make it a habit to scroll through RD/MA every once in a while, and I've seen you offer intelligent insight on multiple occasions. Hence, a barnstar. :) —Anonymous DissidentTalk 11:46, 6 February 2009 (UTC)
The Random Acts of Kindness Barnstar
Dear Gandalf61, thank you for the kindness that you've shown towards me. I do not believe that we've ever interacted on Wikipedia before but nevertheless, you stood up for me. I really appreciate this act of charity and hope that God will bless you and your family in abundance. The image in this barnstar has a smile in it, which you brought to my face today. I hope that this barnstar will do the same to you. Your new friend, AnupamTalk 03:41, 2 May 2012 (UTC)