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Drone with grabbing claw arms can lift 22 pounds

Prodrone’s latest creation could lift a four-year-old child, and uses its 5-axis metal claws to perch on fences like a bird.

Smart Camera Uses Sensors, AI to Automatically Edit Video

For many amateur video shooters, the fast-forward button is a valuable friend. It could be, though, that sorting through long minutes of footage when not much is happening for the few seconds of gold is about to be a thing of the past.

The creators of a new high-definition camera called Graava say the pocket-sized device uses its GPS, accelerometer, gyroscope, microphones and image sensor to mark the most interesting moments in video as it is being recorded. It can also take heart-rate readings with an attachable third-party monitor to note exciting moments for the user. Then artificial intelligence pieces those moments together into highlight clips with only the good stuff, which is immediately available to share on social networks. Learn more and see a video below.

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TP (and SSB) Ganondorf Stimboard with purple

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The Pixel and Pixel XL is what happens when Google designs phones

It took Google a while, but its fascination with hardware has finally turned into something serious. Software is Google’s art, and the company has been working for a long time to craft the right canvases. That’s where the new Pixel and Pixel XL come in. These phones are a culmination on Google’s part of years’ worth of experimenting with hardware, and they’re unsurprisingly great. Simply put, everyone else making Android phones should be a little worried.

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SKY & TELESCOPE OFFERS TIPS FOR FIRST-TIME TELESCOPE BUYERS

A telescope is a popular gift, especially so every December. It can be a portal to the universe and provide a lifetime of enjoyment. But there’s no one “perfect” telescope – just as there’s no such thing as a perfect car. Instead, choose a telescope based on your observing interests, lifestyle, and budget. And “buyer beware”: a telescope should not be bought on impulse.

“Don’t expect a lot from the majority of telescopes costing less than $200, and certainly be wary of anything sold in a toy shop or department store,” says Sean Walker, Equipment Editor of Sky & Telescope magazine. “Do some research before buying, and then go to a reputable store or online dealer that specializes in telescopes or related products, such as cameras or consumer electronics.”

Here’s expert advice from the editors of Sky & Telescope to help anyone searching for a first-ever telescope.

Telescope Types

Telescopes come in many shapes, sizes, and prices. Yet all of them fall into one of three general classes: refractors (those that collect light using lenses), reflectors (those with mirrors), and compound telescopes (hybrids of the two). Each has its strengths and weaknesses, but all share the same function: to gather light from a distant object and to form a sharp image that can be scrutinized by eye or camera.

* Refractors have a lens at the front of the tube – it’s the type most people are familiar with. While generally low maintenance, refractors quickly become expensive as the diameter of the main lens increases. In refractor lingo, an apochromat offers better optical quality (and is more expensive) than an achromat of the same size.

* Reflectors gather light using a precisely-shaped curved mirror at the rear of the main tube. For a given diameter, these are generally the least expensive type, but you’ll need to adjust the optical alignment periodically – especially if you bump it around a lot.

* Compound (or catadioptric) telescopes, which use a combination of lenses and mirrors, offer compact tubes and relatively light weight. Two popular designs are called Schmidt-Cassegrains and Maksutov-Cassegrains – look for these phrases in ads or on the telescope itself.

“Whatever design you choose, optical quality should be your top priority,” notes S&T Senior Editor Kelly Beatty. “It’s the key to seeing the night sky at its best.” Running a close second is a solid, steady mount with smooth, dependable motions.

If at all possible, try before you buy – visit a local astronomy club and look through members’ scopes to see which ones you like. If you purchase a unit online, make sure there is a good return policy. Avoid used-equipment offers unless you’re certain about what you’re buying.

What to Look For

Here are important characteristics to look for in any telescope, regardless of type:

Aperture The aperture (diameter) of the primary lens or mirror in your telescope determines two things: light-gathering power and resolving power (the ability to see fine detail). The larger the aperture, the more light your scope collects and the fainter the objects you can see. With increased aperture also comes increased resolution – a larger-aperture telescope will reveal smaller features on the Moon and in distant nebulae and galaxies.

Focal Length and Magnification The distance from the primary lens or mirror to the point where the image of a distant object comes into focus is called the focal length. The magnification, or power, of any telescope-eyepiece combination is easy to calculate: divide the focal length of the scope by that of the eyepiece. So a 25-mm eyepiece used with a refractor having a focal length of 900 mm gives 36 power (900 / 25 = 36), usually written as 36x. As a general rule, twice the aperture in millimeters (or 50 times the aperture in inches) is the maximum usable magnification. Beyond that, the image gets so faint and fuzzy that it seems forever out of focus.

Finder Beginners are frequently surprised at how small a window on the sky their scope presents when used at medium to high power. So all telescopes – regardless of type or design – should be equipped with a high-quality finder, an observing aid that assists in locating celestial objects. Very common these days are “red-dot” finders, which use an LED to project a red dot or centering pattern on the search area but don’t magnify the view.

Mount Type A telescope with the finest optics will be rendered useless without a suitable mount. A good mount (1) holds the instrument firmly with little vibration, (2) allows the tube to be pointed to any part of the heavens quickly and accurately, and (3) permits smooth and precise tracking of a celestial object as Earth’s rotation carries it from east to west across the sky. Two basic types of mounts accomplish these tasks: altazimuth and equatorial.

Alt-azimuth (“alt-az”) mounts, which move up-and-down and side-to-side, require simultaneous manual corrections for two axes to keep celestial objects in view. Unless you have a motor-driven altazimuth mount, for high-magnification visual observations – and especially for faint-object astrophotography – you’ll probably want an equatorial mount.

An equatorial mount also uses two axes, but one of them is aligned parallel to Earth’s axis of rotation by being pointed at the north celestial pole, near Polaris, when viewing from the Northern Hemisphere. Then, once a celestial object has been found, you only have to pivot the scope around its “polar” axis to keep the object in view.

Computerized Scopes Many telescopes use a built-in computer to drive the mount’s motors. Once properly initialized, the computer takes over and can automatically aim the telescope at any desired object and track it as it moves across the sky. This is the essence of a “Go To” telescope. Depending on the sophistication of the system, you might need to enter your viewing location, date, and time at the beginning of an observing session. You might also need to point the scope at two or three bright stars or planets in order to synchronize the instrument’s coordinate system with that of the sky.

Go To scopes aren’t for everyone – the setup process might be confusing if you don’t know how to identify bright alignment stars in the sky. And lower-priced Go To models come with smaller-aperture telescopes than similarly priced, entry-level scopes that have no electronics.

TOP IMAGE….All telescopes gather and concentrate light, but the three basic optical designs — refractors, reflectors, and compound — do so in different ways, as revealed by these cutaway drawings. Sky & Telescope / Gregg Dinderman & Brett Pawson

CENTRE IMAGE….Here are seven important qualities of a good-quality telescope: (1) eyepiece shows a sharp image from edge to edge; (2) smooth focuser with “precise” feel; (3) mount moves smoothly on both axes; (4) mount is sturdy and sta-ble; (5) tube stops shaking quickly after being touched; (6) eyepiece is at a comfortable height for viewing while you are seated; and (7) the finderscope is easy to adjust and look through. Sky & Telescope

LOWER IMAGE….Telescope mounts come in two basic types. An altazimuth mount (left) permits the scope to move up-down and left-right. It’s quick to set up and intuitive to use. An equatorial mount (right) tracks celestial objects by turning just one axis and can be more easily motorized — but to work properly it must be aligned with the North Star (Polaris). Sky & Telescope

BOTTOM IMAGE….When using a traditional finderscope (left), your eye must be very close to its back end, and seeing the crosshairs can be difficult in the dark. A “1-power” finder (right) use a red LED to create the illusion of a reference dot or pattern on the sky. It lets you view your target and the superimposed red dot or circle more comfortably. Sky & Telescope

Technology--ya gotta luv it!

Rebirth. Reborn.

| #GIF | #DAILY | #C4D |

Gold is gold.

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Tokyo olympic medals to be made from recycled electronics

In a bid to promote sustainability and cut down on costs for the olympic games, the Tokyo 2020 medals will be made out of recycled metals taken from mobile phones and other electronic devices.

The agenda for Tokyo 2020, which is described as a strategic roadmap for the event, specifically calls for the inclusion of sustainability in every aspect of the games. The project’s goal is to collect around eight tonnes of metal, which will be recycled down to about two tonnes – enough to produce 5,000 medals for the games, according to the committee.

Beginning in April, people in Japan will be able to find collection boxes in more than 2,400 mobile phone stores, as well as in public offices across Japan. 

Don’t really agree with this. Even Sheldon has friends. You get’em if you want’em, sometimes even if you don’t want’em. It’s just hard to find good friends. Remember, “friends help you move, but real friends help you move bodies” -DK

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Finally a good explanation why I am forever alone. 🤧