Marnie Chesterton

Keep going until you can't go anymore and then you move to the next letter, A, and you do the same. I can already feel my kind of competitive straddle persona coming out. So I can feel my adrenaline climbing and I'm getting all kind of ready for a scuffle with my brain. Yeah.

So stick to counting chute or try walking, do the walking technique that is still recommended. I mean, I'd recommend podcasts. The number of people who email in to tell us that they listen to unexpected elements to fall asleep is something that you could choose to take offense at. But I listen to stuff that I enjoy in order to fall asleep.

Thank you both. Plenty of sleep strategies there. It's time to move on, but before we do, next week we are going to be talking about wildlife broadcaster Sir David Attenborough, because it's his 100th birthday on the 8th of May.

We'd love to know if you have any stories or anecdotes about Sir David. Or maybe you can do a good impression of him. Maybe something happened when you watched one of his many documentaries. Please do email your stories into unexpected at bbc.co.uk. Or you can send us a WhatsApp message to plus44-330-6788.

3080 and we might read it out. Still to come, does the moon's gravitational pull make you lighter at night time? That's coming up after this.

Hello, it's Alice again and I'm back with the quiz answer. Earlier we found out that researchers are experimenting with innovative materials in order to improve condoms. And I asked which of these materials have scientists not used in latex condoms? A. Grass B. Graphene

Tai C. Gelatin? Ja vastaus on C. Gelatin. Ei, ei ole gelatin-based-kondomia. Toivottavasti tutkijat Queenslandin yliopistossa Australiassa ovat saaneet cellulose-fibreja natalaisessa spinafex-kastassa ja lisänneet sen latexiin, jotta se olisi vahvempi ja pienempi kondomi.

Ja grafiini? Kyllä, se karbon-based wonder-materiaali on liittynyt latexiin, jotta vahvistetaan vahvistus ja kondomien lämmitys. Hyvä tehtävä, jos olet saanut sen oikein, mutta älä huomioi, jos olet saanut sen väärin. Seuraavassa viikossa on toinen kurssi.

We've now got to that part of the show where one of our curious listeners writes in with a science question and we bring in an expert to get to the bottom of it. It's time to ask the unexpected.

This week our question comes from Richard, who asks, If the moon's gravitational pull is such that it can move the sea, which must weigh millions of tons, why does it not affect people or objects? Why does it not make us lighter at night?

To answer Richard's question, we reached out to Claudia Duraam, professor of theoretical physics at Imperial College London. The gravitational pull of the moon does in fact affect everything on earth, including us as human beings, but the effect is incredibly small really.

Joten syy, miksi luonnon gravitaatiohjelma vaikuttaa ilmiöihin, joilla ne ovat melko näkyviä ja todella fenomenalisia, on se, että ilmiöt ovat todella suuria ja heikkoja ja heikkoja ympäri maailmaa.

Mutta jos ajattelisimme luonnollisen vahvistuksen vaikutuksen, esimerkiksi vahvistuksessa, niin se on melko pieni vahvistus. Me ihmiset olemme melko pieniä vahvistuksia, paljon paremmin kuin vahvistuksen määrä kuin iso jää tai maa.

Ja niin, kun yleensä maa puuttuu meille, se puuttuu melkein samaan aikaan kaikkien osien kanssa. Joten pieni ero maan puuttumisessa, jolla on käsi ja kohti, on liian pieni, jotta voimme yrittää vahvan ja kompleksisen sisäisen rakennuksen, joka käsittelee meidät yhdessä.

Ok, so we are more like a bathtub than an ocean, but we would also be more difficult to pull apart than a bathtub would be, right? So even though our body is indeed mainly made out of water, we're not just filled with water from the bottom up, having tissues and hair and air floating on the surface.

Olemme oikeastaan hyvin kompleksinen järjestelmä. Olemme enemmän kuin erittäin syrjintä tai geli. Fluidit ovat kiinnostuneet sisällä säädöksiä ja taitoja ja olleet yhdessä sisällä ympäristöjärjestelmien ja liittyvien taitojen sisällä.

And that prevents fluids from just pouring out of a body. So since we're all wrapped up into one compact and coherent body, the gravitational pull of the moon cannot really have a noticeable tidal effect on us, at least not in any conceivable biological relevance. So that is the first time I've heard humans described as sponge-like, but I suppose compared to an entire ocean we are.

Thank you, Richard, for the question. Leonie and Sandy, all this talk of gravity has me wondering, do either of you think you do well in microgravity? I certainly hope I get a chance to try it out. Since I've been a kid, there are only two places I've really wanted to visit. One is Antarctica and the other one is the moon. I'm still working on both. So if anyone out there at NASA has a spare room or a spare seat, give me a shout. Yeah.

I've never wanted to be in space. I don't know. I find it hard to imagine what it would be like in microgravity, I guess, because there's nothing really that comes close to comparing. I don't know. A lot of people say swimming is the closest thing we get. Yeah, but I've read a few astronauts' accounts and they seem to experience a lot of nausea in the first few days, right? Is it something because of the inner ear, the liquid in the inner ear going...

hieman huonosti, mutta tiedätkö, minulla ei toimi hyvin moottoripuolta, joten se ei ole minulle hienoa. Kyllä, ajattelen, että minun pitäisi myös soittaa nousemukseen. Olen tehnyt hieman uudistamista, mutta jos teet sen oikein, kun menet takaisin, tulet huonosti paikalle, jossa olet juuri muutaman minuutin, kun tunnet, että olet zero-sääntöisessä. Ja se on ihan mahtavaa.