John Koch

"Polar bear hunting." Hmmm. Looks like a perilously high dive to reach the chilly water. No signs of any seals or fish to catch. Wonder what the hungry bear eventually did. I cannot even...

São Caetano do Sul is part of Greater São Paulo, whose skies are seldom dark enough for good astronomy. Yes, Jupiter is bright enough to be seen, but a telescopic view will be blurry, more or less...

Select your 20 to 30 favorite photos, crop and print them to a suitable format, mount them in quality frames, and hang them prominently in your home or office.  Make sure they are labeled to ...

Angel Falls is in Venezuela's Canaima National Park. Many countries penalize drone operations in national parks, absent special (expensive) authorization. As in most countries, in Venezuela...

Are they a "clashing triplet of galaxies"? Perhaps they are very far apart, but simply appear to overlap, when viewed from the Hubble, whose lenses foreshorten the appearance of the actual...

Consumers have been offered underwater drones, priced in the $500 to $1,000 range, for several years. Unfortunately, there are few reviews that show authentic video shot by the devices, and it is...

True. But that uses more space, generates more heat, shortens battery life, and devours lots of time to edit or render, and demands investment in pricey computer hardware.  To shoot 10-bit in bulk ...

Yes, they must have shot the outdoor scenes in April. Except for the evergreens, the landscape and vegetation all appear brown and leafless. The people who pass buy are dressed for cool weather,...

The Swedish Fish gummies were not sent to sweeten the review. They were to serve as a prop to illustrate how a vlogger can present an object close to the camera and have the auto-focus adjust...

Curious to see that it uses CCD (not CMOS) sensors and must be chilled to -150° F in order to operate.  The article does not state how long the exposures must be in order to capture the faint ...

The video looks very blurry and the resolution is only 720p. Could this be because is heavily cropped? Or was the lens clouded by salty sea mist? Too bad we are given no coordinates for the...

Automobile warranties protect most buyers against major product failures.  New brakes, tires, or oil changes are maintenance, not repairs. Repairs or renovations of an old house can be quite ...

Delete all your photos, whether individually or by a complete re-format of the hard drive.   Yes, every last stinkin' file.  This will free you of all your vanities. Next, meet or re-connect with a ...

Anybody, anybody can take a still photo with a camera or phone and coax a friend to look at it.  The well-meaning friend (or Mom) will give it a 5-second glance and something amicable, like "Hey, ...

According to the caption for #10, a Suri Tribesman can marry only when he can give 60 cattle to the prospective father-in-law. A rather expensive hurdle. Probably results in lots of love without...

@ seakayem: To be honest, most potential buyers of an ICL system simply "want a camera that will take great pictures." It is an illusion, of course. One can take great pictures with a phone or...

"Discretionary income" must also be net of retirement account contributions, plus whatever needs to be set aside to cover at lest several months' disruption of income. If there are unpaid credit...

"Nuclear sized" should mean very tiny. Even a uranium atom nucleus is smaller than a pinhead. A hydrogen nucleus is 1/235 as large as that.

Interesting concept. But the photographic sample given involves a subject that appears blurry to begin with, and none of the versions with or without spaceplates look clear at all. However, if...

Nearly any camcorder will offer a zoom lens with a 35mm focal length equivalent at the wide end.  Some can shoot even wider. The point is, though, that a 35mm focal length equivalent will capture ...