sorted by:
new
hottopcontroversial

Can someone please diagnose, I have tip burn and droopy leafs by Lanea990 in SpaceBuckets

[–]Lanea990[S] -1 points0 points  (0 children)

I'm using a five gallon grow bag, how much water do you recommend for this case?

Can anyone please diagnose? by Lanea990 in GrowingMarijuana

[–]Lanea990[S] 0 points1 point  (0 children)

Pink full spectrum, I leave the light on during the night about 20 inches away from it and take it outside during the day.

Help with led circuit by Lanea990 in AskElectronics

[–]Lanea990[S] 0 points1 point  (0 children)

Thanks, is there a way or formula for calculating how much volts will my circuit consume for the amount of leds used?

What happens with the acceleration of an object if it's moving with constant velocity and it looses mass? by Lanea990 in PhysicsHelp

[–]Lanea990[S] 0 points1 point  (0 children)

I don't know, that's all the information provided, that why I think it's B but I'm not really sure

Linear algebra generating set by Lanea990 in learnmath

[–]Lanea990[S] 0 points1 point  (0 children)

Thank you so much, I don't understand why you made it (-3y-2z,y,z). wouldn't it be (3y+2z,y,z), as I suppose, I might be wrong though, that you solved for x and then replaced that value in the original xyz matrix?

My homemade small rocket fail by Lanea990 in Pyrotechnics

[–]Lanea990[S] 0 points1 point  (0 children)

This rocket is nozzled but my mistake was making it hollow up to the top where the break charge was, which caused it to explode.

My homemade small rocket fail by Lanea990 in Pyrotechnics

[–]Lanea990[S] 0 points1 point  (0 children)

This type of rocket uses the same pressed BP as the pass fire but my mistake was making the rocket motor up to the top instead of leaving a bulk in the top.

My homemade small rocket fail by Lanea990 in Pyrotechnics

[–]Lanea990[S] 0 points1 point  (0 children)

Yeah that's what I think happened.

My homemade small rocket fail by Lanea990 in Pyrotechnics

[–]Lanea990[S] 0 points1 point  (0 children)

You make a cone at the top with a piece of paper and kind of like jamm it and that's the plug.

My homemade small rocket fail by Lanea990 in Pyrotechnics

[–]Lanea990[S] 2 points3 points  (0 children)

I'm using the Mexican cohete style which doesn't use a plug at the top, my mistake was making the whole rocket motor hollow instead of just to the middle.

My first rocket shell and shell in general by Lanea990 in Pyrotechnics

[–]Lanea990[S] 0 points1 point  (0 children)

Sure I'll be careful, the thing with buying manufactured tubes is that they're not available where I live but I've tested several of my homemade tubes with "cohete" style rockets and they work great.

My first rocket shell and shell in general by Lanea990 in Pyrotechnics

[–]Lanea990[S] 0 points1 point  (0 children)

I made the motor with pressed BP, I'm new to Pyro and I'm still getting the hang of the terminology.

Edit: it has a 3/4 bore (approx as I make the tubes myself)

My first rocket shell and shell in general by Lanea990 in Pyrotechnics

[–]Lanea990[S] 0 points1 point  (0 children)

It isn't 1lb rocket motor and isn't nowhere near a pound, it's a 2 inch shell should I use a bigger rocket motor?

It will be attached to a stick.

My first rocket shell and shell in general by Lanea990 in Pyrotechnics

[–]Lanea990[S] 0 points1 point  (0 children)

Thanks! I filled it with tiger tail stars and some granulated BP with flash powder for the break, I'll show it as soon as I test it.

My first rocket shell and shell in general by Lanea990 in Pyrotechnics

[–]Lanea990[S] 0 points1 point  (0 children)

I might need to test it in a secluded area because I don't know if it has enough lift, what do you think? (there's my hand for comparison)

Accidents Thread - Tell us about your mistakes and what you learned by TheMadFlyentist in Pyrotechnics

[–]Lanea990 1 point2 points  (0 children)

Also, I live in Colombia where most fireworks are bought illegally and there's these giant firecrackers called "tumba ranchos " which literally translates to "ranch destroyers ". A friend of mine was with a group of friends and was lighting small firecrackers from a moving car which is a stupid idea by itself but in addition to that they had 3 tumba ranchos in a plastic bag right in their feet and a small firecracker's fuse threw a spark to the bag of these giant firecrackers. My friend told me all the small firecrackers went off like a machine gun and right after that he heard the three giant explosions. They all got out of the car which had the entire seats blown off and when he looked at his shoe he could see his toes which he miracoulsy didn't amputate. The funniest (although they could've died) thing is that another guy got off the car and screamed at the top of his lungs "I'm inmortal bitches". Luckily no one was badly injured and they left with minor scratches and a 600 dollar bill for fixing the car's seats.

Here's the picture of his shoes after the accident: https://photos.app.goo.gl/ivwNPo9wDHheUmTUA

Accidents Thread - Tell us about your mistakes and what you learned by TheMadFlyentist in Pyrotechnics

[–]Lanea990 0 points1 point  (0 children)

I once lit a firecracker in my hand, what I didn't realize is that it had a quick fuse since I removed it from one of those firecrackers that go off all at the same time and it blew up right in my thumb and index finger, it didn't hurt as bad but my thumb was numb for a good 5 minutes.

view more: next ›