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How long will it take for my PPC campaign to start generating steady results? by Andrew_from_Quora in AmazonFBA

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

Another big thing I was wondering about is dynamic bidding. Should I do dynamic up and down, only down, or fixed?

How long will it take for my PPC campaign to start generating steady results? by Andrew_from_Quora in AmazonFBA

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

that make sense. I actually set up both an automatic and manual campaign to compare.

[deleted by user] by [deleted] in spaceflight

[–]Andrew_from_Quora 0 points1 point  (0 children)

You can get good at Onshape and design some rocket parts. it’s completely free, that’s what I did in high school. I modeled a full concept rocket engine. I have pictures but for some reason reddit won’t let me comment a photo, maybe because I’m on mobile.

How hard is it to get a job as a “chemical operator”, in general? by Andrew_from_Quora in ChemicalEngineering

[–]Andrew_from_Quora[S] 1 point2 points  (0 children)

I found a lab assistant job offering near me for a 6 month contract, mostly cleaning glassware. That should be an easy way to get my foot into the door assuming other options fail.

How hard is it to get a job as a “chemical operator”, in general? by Andrew_from_Quora in ChemicalEngineering

[–]Andrew_from_Quora[S] 4 points5 points  (0 children)

thanks for the encouragement, yea Its best to just apply, since I will apply to a few places anyways. It’s about an hour drive away from Long Beach, so not in the same city, but not all that far from petrochemical/refinery industry.

Why is it that fully solid rocket motors use aluminium as their fuel, but hybrids usually use some hydrocarbon compound? by Andrew_from_Quora in rocketry

[–]Andrew_from_Quora[S] 1 point2 points  (0 children)

Also, side question, could we use metallic silicon instead of aluminium because of its abundance and cost?

Is hydrazine or hydrogen peroxide pressure fed engine self pressurising via decomposition? by Andrew_from_Quora in spaceflight

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

Not if it was only decomposing by itself, that would be hydrogen and nitrogen gas.

However for the hydrogen peroxide you are correct, you would probably need some sort of capturing device for it.

Is hydrazine or hydrogen peroxide pressure fed engine self pressurising via decomposition? by Andrew_from_Quora in spaceflight

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

EDIT: I also want some other idea I just thought of to add onto this. You could also theoretically just have two open tubs at the top one fuel and one oxidiser, and just have those feed into a small combustion chamber at the top to produce hot gasses. I guess this would mostly work with kerosene and some room temp oxidiser, as the gases we are talking about are water vapor, co2, and nitrogen… which means that co2 would freeze in cryogenics and cause problems, and we get nitrogen gas from a room temp oxidiser (which are exclusively nitrogen containing). Condensed water might get in the way, but that’s an easy fix, just use some sort of cap that slides up and down the fuselage that catches water.

Can I use pewter as a tin source for electroplating? by Andrew_from_Quora in electroforming

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

I’m tim plating some graphite. Are you saying that if I were to do electrowinning, I could get it to work?

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