/sci/ I really need to know how big can we make spiders? Like

>>8642643
Also robot spiders count to, because we could just hook a spider's brain up to the robot

>>8642643
84.85 Centimeters

>>8642737
australia-tier with gigantism

meh

>>8642643
IIRC the limit to insect and arachnid is pretty close to big spiders. This is because their breathing system is just a bunch of tubes that lead to all the organs and air just diffuses right in. This means that you can't scale them because the squared-cubed law means you need more tubes than volume.

>>8642643
>>8642763

You could grow cyber-spiders to much larger sizes. Plus, lasers.

>>8642861

This also means they can grow bigger in richer atmospheres, such as existed before the current Ice Age. But idk if spiders are that ancient of a lineage.

Best answer: don't

>>8642861
>>8642876
We did a calculation that human sized insects would need hurricane force winds to get enough oxygen.

>>8642861
Spiders have lungs though:
https://en.m.wikipedia.org/wiki/Book_lung

Perhaps we could give them better lungs. Might be possible to give them something like the breathing system robber crabs have

>>8642643
i think there are calculations that the thin structure of an average spider wouldn't be able to support itself much bigger than a tarantula already gets
and those are thick spiders
even with super strong metals a robot could only get so big before the weight overwhelms the design

>>8642643
Fans of Really Big Spiders will enjoy a passage in Varley's "Golden Globe" that covers how space station structures are built.

>Them D-9 "Motherspinners."

>>8642643
>we make spiders
We don't.

>>8642861
The square cubed law states that volume grows faster than surface area as you increase dimensions but why does that make difussion tubes impossible at certain sizes?

insects used to be fuck huge on earth at the time when oxygen content in the air was higher

>>8643004
>> robot could only get so big before the weight overwhelms the design
well how big is it then?

>>8642861
i already said 84.85 centimeters is the maximum span of a spider

>>8644496
Ok, but what about for a robot or if we gave spiders better lungs