Ghost Crabs are fast little suckers, so as i was watching a vid about them it hit me how fast would they be if they were the size of a human? Please look at my math, and if any of it is wrong PLEASE PLEASE PLEASE comment it, because I dont want to believe what i see. And i know that ehere are spelling errors, im doing this all before i go to bed.
If a ghost crab was the size of a human- Size- up to 3 inches or 23 times smaller than an average human (~69 inches [nice]) Can run 100 body lengths in 1 second 300×23= 6900 inches a second That is 575 feet a second (about half the speed of sound) Or 3450 feet a round... Ok lets give it the ability to dash as a bonus action.... So 3450÷3=1150... Its base movement speed is 1150... Wait lets giving something like the Tibaxi dash So 3450÷2= 1725, then we take its movement into account and dash so ÷2 again. So its BASE movement speed would ve 862.5.... A humans is 30ft.... So in DnD if a ghost crab was the size of a human its base speed would be 862.5 feet a round we could just round it to 850 and have little to no difference.
What if it was the same size? 300÷12=25 25×6= 150 feet a round.. Ok so if it had the ability to dash as a bonus action? 150÷3=50... 50ft base speed for something 3 inches wide... Holy crap Ghost Crabs are insane!
To run on water you would have to be able to run 3 times as fast as Usain Bolt can on dry land, or about 30 m/s [or 90ft a second]. 30 m/s is about 70 mph. TL;DR: the 650 mph quote is wildly overestimating the speed required. A lower speed of 70 mph is sufficient
Give your players a simple quest to catch some crabs.... Just don't tell them they move half the freaking speed of sound
Take, for example, your household cat and a lion. The cat is what, 40cm long, and a lion is (one quick google) about 2m long. so the lion is 5 times as long.
now a lion weighs 190kg, and a housecat weighs 4. so the lion weighs 47.5 times as much as the cat.
a housecat can run at a maximum of 48km/h. A lion can run at (oh wow) 80km/h. so the lion can run about twice as fast as a housecat. but the a cheetah is smaller than a lion, and can run even faster (130km/h). so size isn't related to speed.
the largest crab is the Coconut crab - they are massive and awesome, and very slow. google didn't have a top speed, I think whoever was testing it got bored halfway through, or died of old age.
bear in mind that if a creature moves at half the speed of sound, their legs will be moving at the speed of sound to move forward for the next step - somehow, I don't think it's going to work like that!
Ghost Crabs are fast little suckers, so as i was watching a vid about them it hit me how fast would they be if they were the size of a human? Please look at my math, and if any of it is wrong PLEASE PLEASE PLEASE comment it, because I dont want to believe what i see. And i know that ehere are spelling errors, im doing this all before i go to bed.
If a ghost crab was the size of a human-
Size- up to 3 inches or 23 times smaller than an average human (~69 inches [nice])
Can run 100 body lengths in 1 second
300×23= 6900 inches a second
That is 575 feet a second (about half the speed of sound)
Or 3450 feet a round...
Ok lets give it the ability to dash as a bonus action.... So 3450÷3=1150...
Its base movement speed is 1150... Wait lets giving something like the Tibaxi dash
So 3450÷2= 1725, then we take its movement into account and dash so ÷2 again. So its BASE movement speed would ve 862.5.... A humans is 30ft.... So in DnD if a ghost crab was the size of a human its base speed would be 862.5 feet a round we could just round it to 850 and have little to no difference.
What if it was the same size?
300÷12=25
25×6= 150 feet a round..
Ok so if it had the ability to dash as a bonus action?
150÷3=50... 50ft base speed for something 3 inches wide... Holy crap Ghost Crabs are insane!
To run on water you would have to be able to run 3 times as fast as Usain Bolt can on dry land, or about 30 m/s [or 90ft a second]. 30 m/s is about 70 mph. TL;DR: the 650 mph quote is wildly overestimating the speed required. A lower speed of 70 mph is sufficient
Give your players a simple quest to catch some crabs.... Just don't tell them they move half the freaking speed of sound
Sadly it doesn't work like that.
Take, for example, your household cat and a lion. The cat is what, 40cm long, and a lion is (one quick google) about 2m long. so the lion is 5 times as long.
now a lion weighs 190kg, and a housecat weighs 4. so the lion weighs 47.5 times as much as the cat.
a housecat can run at a maximum of 48km/h. A lion can run at (oh wow) 80km/h. so the lion can run about twice as fast as a housecat. but the a cheetah is smaller than a lion, and can run even faster (130km/h). so size isn't related to speed.
the largest crab is the Coconut crab - they are massive and awesome, and very slow. google didn't have a top speed, I think whoever was testing it got bored halfway through, or died of old age.
bear in mind that if a creature moves at half the speed of sound, their legs will be moving at the speed of sound to move forward for the next step - somehow, I don't think it's going to work like that!
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