BorisK1

Thank you for the kind words!It's hard to tell with the savings (the weather is never quite the same, and the electricity price changes each year). I'll know more by the end of the summer. But the...

Just the second-floor rooms.  They have significantly weaker airflow than the first floor rooms, because the ducts are longer and have bends.  That's not a problem in winter time, but in summer the...

Those are the smaller ducts that branch out of the main outlet duct.  When the fans are off, they still let the air through the blades easily enough (these are the "mixed-flow" fans).  That's not...

Sorry, no hot-button issues here.  I just finished a long and fun project - putting together some booster fans in my house.  Designing the control center for them was a bear, but the third attempt...

You might want to lookup diffraction limits for typical cellphone sensor sizes (1/3"), and typical lens apertures (f:3.5).
Nokia's Pureview is a *massive* exception.

"Can you find me ONE thread on this whole forum of complainers that describes a user who actually broke a flip screen from their camera"
- Just search Olympus SLR forum for "split LCD" or "split...

"Can you find me ONE thread on this whole forum of complainers that describes a user who actually broke a flip screen from their camera"
- Just search Olympus SLR forum for "split LCD" or "split...

Pelican Imaging's camera array is nothing like Lythro. If this technology is scalable (that is, if it's possible to build large camera arrays that cheaper than large sensors of comparable...

A science theory is a testable hypothesis that best explains known facts.  Antrophogenic climate change cannot be called a "theory" in the same sense as, say, Newton's mechanics or Einstein's...

I just did a quick web search - and it the picture is not nearly as rozy.  Yes, we (collectively) spent the money over the last 20 years.  No, the ozone hole didn't start "healing", it's losing...

In soviet Russia, the ink prints you!

You don't say?! I have to confess:  My reply was not quite on the level.  In truth, I realize that there is no way a Smart Car would fit through a slot of a mailbox, especially with a postage...

Once it's printed, it's a physical object. Last time I've seen a "Smart car", it was navigating a parking lot in the middle of a Michigan snowstorm.  The road was clogged with over a foot of wet...

Easy as pie - just print a wider stairwell.

One example - https://nwreprap.com/ sells kits for Prusa Mendel Iteration 2 for $700.  Some assembly required :)

You can't print the electronics (at least, not yet), but many other parts are 3D-printable.  It's a great way for a hobbyist to get into 3D printing on the cheap: http://reprap.org/wiki/Main_Page

The (near) telecentricity requirement was purely a 4/3 thing, It's dropped from m4/3rd.

Some people will complain about a bicycle without a seat. Others will whine about one that's missing pedals.

Go figure!

Thanks for posting it.  Though it would be nice to see at least some technical details.   How do you figure that?  It's an array of fixed-focal-length, non-focusing lenses.  It's basically stuck...

A few weeks ago, DP published a story about Pelican Imaging - a California company that developed a camera array module for cellphones (sorry, can't find the link).  Apparently, it's a grid of tiny...