Dan, James, Anna and Andy discuss see-through wood, artificial wine, and the Queen's adventure in a lift.
Friday 20 May, 23:05, BBC Two
Websites, videos, images and other places where the facts for the show came from
Yeoman search the Houses of Parliament's cellars for gunpowder before the State Opening of Parliament each year.
The queen used a lift instead of stairs at the 2016 State Opening of Parliament for the first time.
Queen Elizabeth has struggled with lifts in the past.
The Gentleman Usher of the Black Rod has the power of arrest.
An MP is taken hostage once a year during the State Opening of Parliament. Jim Fitzpatrick reminisces about being the 2014 hostage here.
Prince Henrik of Denmark fells discriminated against because he doesn't get to be king.
Fights sometimes break out in Ukraine's parliament - like this one in December 2015:
Canada's PM Justin Trudeau just had to apologise for elbowing a fellow MP in the chest.
Canadian politician Vicki Huntington's plea to ban applause was met with applause.
Queen Elizabeth's crown weighs as much as a kitten. Or a brain.
According to the former head of Russia's anti-doping laboratory, male Russian athletes take their drugs with martini, while female ones take them with whisky. Here's the full interview with Grigory Rodchenkov.
Urine samples from the London Olympics are going to be tested again for drugs, retrospectively.
The cocaine that was just seized in Colombia amounts to enough to get all the elephants in the world high.
Sniffer dogs are great at finding sausages and cheese, but hopeless at sniffing out drugs.
West German swimmers had air blown up their colons to make them more buoyant.
The ISS has quadruple glazed windows. The fleck of paint that hit the ISS and cracked its window was about 1/1000 of a mm - the same size as the head of a human sperm.
Here's what happens to astronaut faeces in space.
Astronauts spent the ISS's 100,000th orbit measuring the grip of mice.
You don't need pillows in space, though some still use them.
But apparently a didgeridoo is necessary:
Scientists have turned water into wine, and it smells like inflatable pool sharks.
Other scientists have built a magnet wrapped in pig intestine to get batteries out of people's stomachs.
There's a new Google patent for a car that glues pedestrians to its bonnet.
And another Google patent that helps you avoid seeing anyone you know on the way back from the gym.
Scientists have discovered that size doesn't matter - for fish.
If humans proportionally had the same size penises as mosquito fish, the average human male's penis would be about the length of a Scottish salmon.
Students at the University of East Anglia are no longer allowed to throw their mortarboards in the air when they graduate - but they can mime throwing them and pay £8 to have them photoshopped in afterwards.
Tweeted to us by Chris Emerson, from The Independent
Uzbekistan schoolteachers have been paid in chickens.
French finance minister denies twanging a journalist's knickers.
Half of your friends don't don't consider you a friend.
Man stages protest after being refused service at a Drive Thru in his horse and carriage.