Season 2
26 episodes · Sep 5, 2022
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S2E1You Built a Mega Slide?
Sep 5, 20225mCould you build a slide to the other side of the world? You would need to start in space, use the slippiest slide ever and make sure you have enough supplies before you go down it.
S2E2You Walked Through Walls?
Sep 6, 20225mWouldn't it be cool to be able to walk through walls? From turning into a gas to quantum trickery, we discover why it wouldn't be quite as useful as you'd like.
S2E3We Got Rid of Bugs?
Sep 7, 20225mBugs might be annoying, but we would soon regret it if we got rid of them - all our favourite foods would disappear, and there would be dung everywhere.
S2E4You Needed Two of You?
Sep 8, 20225mFrom cloning to 3D printing, what if we could actually make copies of ourselves?
S2E5You Could Stop Global Warming?
Sep 12, 20225mImagine if we had a thermostat that could turn the world temperature down - could we fix global warming? But be careful, a few degrees too far and could cause an ice age.
S2E6You Lived on Venus?
Sep 13, 20225mVenus has acid rain, crushing pressure and is hotter than an oven, so it might not sound like the ideal place to live. However, up in the clouds it's almost just like home.
S2E7You Could Shout Round the World?
Sep 14, 20225mFind out how to shout from one side of the world to the other.
S2E8You Were Invisible?
Sep 15, 20225mWe try out three potential ways to become invisible and discover some surprising side effects.
S2E9We Had Two Suns?
Sep 16, 20225mThere is a way that Earth could have a second sun, so we try it out to see what happens.
S2E10Your Mind Could Move Things?
Sep 19, 20225mWe imagine a world where it's possible to move things with your mind like films, but find that the laws of physics mean that this superpower wouldn't quite work like you expect.
S2E11Animals Were Supersized?
Sep 20, 20225mWe look at whether some animals can get gigantic and find out that if you are being chased by a giant snail or a humungous butterfly, then fear not, you must be dreaming.
S2E12You Walked on the Ceiling?
Sep 21, 20225mWe try using a gravity-bending black hole and spinning the earth faster to see if we can make it possible to walk on the ceiling.
S2E13You Were the Last Person on Earth?
Sep 22, 20225mWhat would the planet be like if all other humans disappeared, leaving you as the last person on earth?
S2E14You Built a Giant Sand Castle?
Sep 23, 20225mIs it possible to build a sand castle the size of a real castle? We imagine how it could be done, using a pneumatic drill and a huge, solid gold steamroller.
S2E15You Shrunk the Earth?
Sep 26, 20225mWe find out what would happen if you shrank the earth. You could jump higher and move faster, but you would end up with altitude sickness even at sea level.
S2E16Money Grew on Trees?
Sep 27, 20225mIf you had a tree that could grow money, would that make you rich? Even if you wait 20 years for your tree to grow, you will probably end up no richer than you started.
S2E17You Flew Like a Superhero?
Sep 28, 20225mFlying like a superhero may sound like enormous fun, but there are some serious downsides that Hollywood does not tell you about - weather, extreme cold and even fizzy blood.
S2E18There Were No Colours?
Sep 29, 20225mImagine removing all the colours one by one? It would change more than just how things look, and after taking out just three colours, we would not be able to see anything at all.
S2E19You Only Ate Burgers?
Sep 30, 20225mIf everyone in the world ate nothing but cheeseburgers, we would run out of land, and even if we went meat-free, we would have to invent some crazy burgers to get the nutrients we need.
S2E20You Threw a Ball Round the World?
Oct 3, 20225mTo throw a ball around the world, you need to start out in space, throw it ten times the speed of a bullet and make sure your ball does not explode when it hits the atmosphere.
S2E21You Built the Tallest Building on Earth?
Oct 4, 20225mWe reveal how to create the ultimate in tall buildings by going to the moon and taking inspiration from wedding cakes.
S2E22You Had Kangaroo Legs?
Oct 5, 20225mTo win a marathon, are you better off with the bouncing legs of a kangaroo, the long legs of a T. rex or sticking with the legs of a human?
S2E23You Were Indestructible?
Oct 6, 20225mWe imagine becoming unbreakable by removing our bones, turning our skin to metal and finally by becoming completely elastic, but indestructibility isn't everything we hoped for.
S2E24You Surfed Without Water?
Oct 7, 20225mSometimes you want to go surfing, but it's too far to the beach, so we try surfing on land with the help of a volcano and some giant fans.
S2E25Earth Ran Out of Energy?
Oct 10, 20225mWe try out a crazy idea from science fiction to build a giant sphere around the sun and give us more energy than we'll ever need.
S2E26You Could Walk Up Walls?
Oct 11, 20225mWe take inspiration from the natural world as we imagine a new kind of superhero that can walk up walls.