Fred2718

Fred2718 t1_j2cbvw5 wrote

  1. The cold plate cannot get hotter than the food by conduction of Heat from the food.

  2. Microwave energy can be absorbed (and converted to heat) by conductive/resistive structures in metal-based ceramics, as well as water molecules in food. I should add that most ceramics suck at conducting heat, so the dish's internal heat tends to stay there.

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Fred2718 t1_j2c8smr wrote

"it remains cooler" Lol wut? It's basic thermodynamics that something cool cannot transfer heat energy to something warm.

Dishware gets hot, even more than the food, if the ceramic or glaze contains metal elements, which can absorb microwave energy. Products marked "microwave safe" do not - they are transparent to microwaves. Clear glass is almost always non-absorbing, but many glass items cannot stand the heat from the Hot food.( More precisely, they cannot stand the stresses from uneven heating and cooling.)

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Fred2718 t1_j21b6p0 wrote

Here are a couple of techniques which may not be in use anymore.

"Rook move encoding" for outlines of shapes, in particular digitized text characters. Instead of recording all the black and white pixels inside the character's body, record the outline of the character, in xy pixel space, as if you were moving a chess rook. E.g. 5 up, 2 left, 4 up, 3 left, ..... I worked with laser printers which did this.

"Patchified memory". Instead of treating a page as a set of raster lines, treat it as a set of small squares, like a quilt. Printed pages of text + black/white graphics tend to have lots of such patches which are all-white or all-black. Those patches can be represented in a very compact way.

These techniques are mathematically unsophisticated, but are easy to understand. Oh, also, they are both "lossless".

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Fred2718 t1_j1imt5s wrote

Was pitched a company doing add-on electric drive for F-150 pickups. They had a few dozen on the road, it Was not just vaporware.

The motor was claimed to make 400hp and was a cylinder roughly 14 inches long x 11 inches diameter. I did not verify this claim. I don't recall the torque spec.

But to be fair to both EV and ICE, you need to factor in the battery mass and volume, against gas tank mass and volume.

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Fred2718 t1_iugvqnm wrote

The problem is wrongly stated. 2500 kg is a mass, not a force. Also, no specifics of the atmosphere are provided. Is it, for instance, STP? Also "How fast" is not a good question. This projectile will have a non-linear acceleration due to air friction. If it goes transonic, it gets even messiet.

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Fred2718 t1_iu39jpj wrote

Part of the contract you made when you bought your shares is something called "drag along". This means that a small minority of shareholders who don't want to sell, can be forced to sell. There are specific, well defined cases where this applies. A total buyout is such a case.

Most small shareholders of public companies are not even aware of the details of shareholder rights ,voting, board control, acquisition, etc, because it almost never matters to them. But your rights have various standard limitations, and in a buyout, merger, bankruptcy, etc. those limitations are important.

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