Ep. 03 Where Did the Gravity Go?! (Part 01) – The Astrobotany Show

Ep. 03 Where Did the Gravity Go?! (Part 01) – The Astrobotany Show


OTHER KAI: Kai, what’s that hat? BOSS KAI: Oh this hat? BOSS KAI: It’s called fashion baby, look it up. ♫ “Young Mark Watney” by Kai Nakano Rasmussen ♫ ♫ “Young Mark Watney” by Kai Nakano Rasmussen ♫
♪ yung mark watney ♪ ♫ “Young Mark Watney” by Kai Nakano Rasmussen ♫
♪ studyin astrobotany ♪ ♫ “Young Mark Watney” by Kai Nakano Rasmussen ♫
♪ i make hangin’ gardens ♪ ♫ “Young Mark Watney” by Kai Nakano Rasmussen ♫
♪ n’ nobody can stop me ♪ * uuuhhh * ♪ let’s grow plants in space ♪ Welcome to the Astrobotany show! I’m your host Kai Rasmussen and today we’ll be talking about one of the most important aspects
of space flight plant biology WHERE DID THE GRAVITY GO?! Ha Ha ha… PREFACE I want to demonstrate something to you so let’s take Astronaut Billy and planet Earth and go to the Astrobotany Tablemobile
(trademark coming soon!) * dat transition tho… * Astronauts appear weightless in outer space This is because when an object moves
further and further from a large planetary body the effective gravity weakens Even though the term
“zero-gravity” is commonly used it’s not entirely correct because
gravity exerts forces on all objects in outer space So the term that we will be using is “microgravity” Even though you’ll commonly hear people
use the term “zero-gravity” This is one of those things that’s kind of like… eeehhhhh?
¯_(ツ)_/¯ But most scientific papers
I’ve seen use the term “microgravity” and NASA actually uses it as well
so it’s the term we’ll be using on this show *zoom cut for dramatic effect* Because at the Astrobotany show We’re sticklers for science STICKLERS We’re sticklers for science It’s clear to us that microgravity affects
astronauts like Billy’s health It will affect almost every cell in Billy’s body There’s loss of muscle mass loss of bone density vision impairment changes in intracranial pressure rapid changes in blood pressure and the list goes on and on and on DISCLAIMER: No astronauts were harmed in the production of this show OUCH! So we’ve kind of got an idea of how microgravity
affects Billy here but we’re not interested in Billy we’re interested in… * wait for it * PLANTS
* the big reveal * I think it would be a good idea to go over
some of the basic plant anatomy and also some of their essential needs You may not know this but this is a plant Most of you are already probably familiar
with what a plant needs but I’ll just review it really quickly It needs water plants need nutrients aaaaand * clap on * lights * laughter * generally roots grow down
so they can get this water and nutrients from the soil and the shoots grow up so the leaves can get to that sweet sweet sunlight
C6H12O6 So the question remains: How do plants know what direction to go in? And more importantly… How do plants know what direction to grow in, in space? tune in next week for the thrilling conclusion to the Astrobotany gravitropism episode PART 2! Hey guys welcome to the second
Astrobotany item of the week where we go over the Astrobotany item of the week all righty
as you can see here the item of the week is lights no wait are lights yeah
anyways these lights are red and blue I’m gonna try to get it so the camera
angle can kind of capture it but their pattern in such a way that appears to
give off purple light and the reason for this is to get the most efficient growth
out of plants you want red and blue light so naturally in space where
efficiency is the name of the game we want purple light therefore on the
veggie growth production system on the international space station this is the
type of light that you will expect to see if you have any questions about a
strobe on you feel free to let us know in the comment section below
let’s eat plants and space

Only registered users can comment.

Leave a Reply

Your email address will not be published. Required fields are marked *