/r/AskEngineers

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Can heat pumps in series provide energy at 400C?

3 upvotes • crastersson

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I want to use a ~10’ long 16” wide and 2” thick slab of wood as a shelf on a 2x4” framed interior wall over slab foundation. I want this shelf to support multiple small terrariums and a 10gallon aquarium if possible. Ideally this shelf would NOT have legs under it. Reasonably possible?

3 upvotes • denovonoob

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Coder army or babbar

3 upvotes • Ok_Ice_6424

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Placing two disposable camera lenses opposite one another symmetrically creates one lens with half the focal length. Is there a formula or optical procedure for determining correct spacing?

3 upvotes • DaneCountyAlmanac

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Career Monday (05 Aug 2024): Have a question about your job, office, or pay? Post it here!

3 upvotes • AutoModerator

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2x6x8 deck joists vs 2x8x8 deck joist capacity 12 inch on center

3 upvotes • sdan74d

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Struggling with transition to industry

2 upvotes • Icy_Ad2884

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I need advice as a new Field Engineer

2 upvotes • Fluxline_

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What to choose between Mechanical Engineering, Electrical Engineering and Computer Science?

2 upvotes • NunoMoto123

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Does anyone have an algorithm that counts pages in a book just by looking at an image of the edge of the book where it opens?

2 upvotes • holsteiners

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Can heat pumps in series provide energy at 400C?	3	crastersson
I want to use a ~10’ long 16” wide and 2” thick slab of wood as a shelf on a 2x4” framed interior wall over slab foundation. I want this shelf to support multiple small terrariums and a 10gallon aquarium if possible. Ideally this shelf would NOT have legs under it. Reasonably possible?	3	denovonoob
Coder army or babbar	3	Ok_Ice_6424
Placing two disposable camera lenses opposite one another symmetrically creates one lens with half the focal length. Is there a formula or optical procedure for determining correct spacing?	3	DaneCountyAlmanac
Career Monday (05 Aug 2024): Have a question about your job, office, or pay? Post it here!	3	AutoModerator
2x6x8 deck joists vs 2x8x8 deck joist capacity 12 inch on center	3	sdan74d
Struggling with transition to industry	2	Icy_Ad2884
I need advice as a new Field Engineer	2	Fluxline_
What to choose between Mechanical Engineering, Electrical Engineering and Computer Science?	2	NunoMoto123
Does anyone have an algorithm that counts pages in a book just by looking at an image of the edge of the book where it opens?	2	holsteiners