pifm_guy · HackerTrans

I was once burned by a Samsung TV whose backlight LED's got so hot they melted the innards of the TV...

Any engineer designing stuff with high power LED's knows how important thermal design is. The LED's should have had temperature sensing and software feedback to reduce the brightness to stop everything melting.

That could have been implemented by measuring the forward voltage... Or with a dedicated temperature sensor.

But on a $1000 TV, Samsung didn't want to pay the 1 cent per unit plus a day of engineering time that would have taken.

And as a result, the TV's had a high failure rate and they lost me as a customer.

pifm_guy

4 anni fadiscuss

> ranking mechanism that can take account of the expertise level of the author

I assure you that all major search engines use the author name of articles and blog posts and even posts of forums like HN for all kinds of purposes that end up influencing ranking. It's primarily for anti-spam (a user account with good content on one page probably has good content on another page), but is used to rank quality/expertise too.

pifm_guy

4 anni fadiscuss

True, although with double glazing you can probably make the HVAC unit smaller, saving weight there too.

And you might not need air vents to defog the screen either - a well insulated window won't get condensation on it to start with.

And double glazing typically needn't be much thicker than single glazing - as long as the air gap between the panels is sealed, then the air itself gives the whole window dynamic rigidity. That's why you sometimes see a thief throw a brick at a double glazed window and it doesn't break.

pifm_guy

4 anni fadiscuss

At some point, it will be worth fitting a car out with double glazed windows to reduce heat loss/gain through the windows.

That should give reduce the energy used for cabin heating, reducing range loss, perhaps by half for longer journeys.

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