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Mark Traphagen
139,960 followers -
Social Media Marketing | Content Marketing | Personal Brand Authority
Social Media Marketing | Content Marketing | Personal Brand Authority

139,960 followers
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Are you ready to do digital marketing in a mobile-first world?

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THIS is why you should think twice about turning off comments on your blog, even if they are a PIA to moderate.
Via +John Mueller From a content quality standpoint, Google sees your indexable content AS YOUR CONTENT (no matter who added it.) For example, user-generated content is counted just like content you add yourself. at 49:50 in the video #seo 

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Get #SEO Mythbusters from +Eric Enge and dozens more SEO professionals, put together by +Ahrefs
SEO Mythbusters

I contributed to this massive collection of "counterintuitive SEO insights" put together by +Ahrefs.

To see my entire insight, go to https://ahrefs.com/blog/seo-mythbusters/ and use your browser search to find "eric enge."
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Modern physics tells us that consciousness is what transforms waves of possibility into what we experience as physical reality. Perhaps it is the case that human consciousness plays a similar role in transforming information’s potential for being known into the objective phenomenon that we call knowledge. If so, in a world with machine-based volition, humanity would no longer be the primary consciousness precipitating knowledge out of experience.

- +Gideon Rosenblatt 

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Something amazing: we have not only the first detection of Earth-sized planets outside our Solar System, but a detection of seven planets around a single star only 40 light-years away - right next door by astronomical standards. These planets orbit a dim dwarf star named Trappist-1 (after the telescope which discovered it, the Transiting Planets and Planetesimals Small Telescope in Chile), and by happy chance, are angled in a good way for us to study them. Even better, at least one of them is in the star's "Goldilocks Zone" - at the right sort of temperature to support things like liquid water and an atmosphere.

The paper itself won't be out until Wednesday, but you can get preliminary data about the system here: http://www.trappist.one/#system . (This includes coordinates, but you'll need a strong telescope to see it; this dim star in Aquarius has an apparent magnitude of 18.80, about as bright in the sky as the dwarf planet Eris)

The system is unusual in that three of the planets may support life: Trappist-1d, e, and f. Even more interestingly, the three are similar enough that someone from one planet could potentially survive on the others. All three have roughly terrestrial gravity -- maybe 0.7g's on d and e, and 0.6g's on f. They are of similar sizes, having surface areas 60, 80, and 110% of Earth's, respectively.

Trappist-1d is the most Earthlike: the average temperature is 288K (15C, 59F), the same as on Earth. If you looked up in the sky there with human eyes, you would see a salmon-colored star, about five and a half times the apparent diameter of our own Sun, but somewhat dimmer; at noon, it would be about 15% brighter than it is on Earth. Of course, eyes which evolved on Trappist-1d wouldn't be tuned to the yellow light of our own Sun; they would be much more likely to see light much further into the infrared and less into the blues, and the light would look a "neutral white" to local eyes, just like our own Sun does to us.

If anything has evolved to photosynthesize in the Trappist-1 system, its analogue of chlorophyll would be principally absorbing in the far infra-red, and the local plants would look dark and reddish to our eyes; the oranges and yellows that make up so much of our own vision would be as exotic to Trappists as the ultraviolet which bees see is to us.

But daily life there would be somewhat more different, because in such tight orbits (close in around a small star, with a "year" of four days on Trappist-1d), the planets would be tidally locked to the Sun, with one side always facing it, much like the Moon always faces one side to the Earth. This means that this Earthlike temperature would be the daily temperature nearly every day on the sunny side, at the equator, and it would get steadily colder as you went out to the dark side -- but how much colder depends tremendously on how thick an atmosphere the planet has. It could be anything from hundreds of degrees below zero, the temperature of exposed space, if the planet has no atmosphere, all the way up to inhabitable but chilly temperatures if the atmosphere is thick. (Further investigation will tell us more about this, since as the planet passes in front of its star, we can see which colors of light are absorbed and how much by its atmosphere)

Weather patterns on tidally locked planets are unusual; if you want a sense of it, you can consider this paper (https://arxiv.org/pdf/1109.2668.pdf) about what tidal locking would do to it. This may well cause the climate to be so unstable that the planet could never evolve life; we'll have to do more science to figure that out.

The two further-out planets are a bit less hospitable; Trappist-1e averages 251K (21C, 8F), roughly the weather of winter in Fairbanks, and 1f averages a chilly 219K (-54C, -65F), the sort of weather you associate with central Antarctica.

This means that 1dians, if they developed short-range space travel, would be able to travel to these places, but absent some really good reason, they would be more likely to be the home of isolated outposts than major settlements. (Given the small size of this system - planets closely packed around a tiny star - this is far easier to reach than Mars is for us; at closest approach, 1d and 1e are less than three times as far apart as the Earth is from the Moon. During this peak, 1e would be huge in 1d's sky, about 20% bigger than the full Moon is in our own. But you would never see this from the light side; at closest approach, 1e is "behind" 1d, with the full 1e visible only at the center of the dark side. The inhabitants of the light side of 1d would see it only through half-phase, before it sank below the horizon.)

There are far more calculations like this we could do (especially since we apparently have information about their relative orbital periods, which would let us chart the skies there in somewhat more detail) but I have actual work to do...

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+Maile Ohye, one of the best known "faces" of Google Search, is leaving Google after 12 years.
Saying farewell to Google... thank you to everyone in the SEO and webmaster community for many wonderful moments! To +John Mueller +Mariya Moeva +Gary Illyes +Brian White +Nathan Johns +Ilya Grigorik +Kazushi Nagayama +Avinash Kaushik and all my other wonderful Google colleagues, keep it up! I'll miss u guys. xoxo

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"It’s a move away from using native applications to something else,” says Gartner research director Jessica Ekholm, discussing the survey in an interview with TechCrunch. “Consumers are getting less interested in using applications; there are far too many applications. Some of the surveys that we’re doing we see that there’s a stablization in terms of app usage. How many apps they’re downloading, how much time they’re spending finding new applications — it’s just that people are getting a little bit disinterested in that. People are spending more time with the apps that they’ve already got."
HT +Glenn Gabe 
This is what scares Google. Facebook could become a "super app" -> Gartner: Facebook on course to be the WeChat of the West 

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How to Persuade Influencers to Create Content for You

This crowd obviously thinks Marklemore is da shizzle. Or something. Anyway, no doubt he's an influencer to them. Getting a major influencer in your space to author content for you can really move your audience. But how to do it? Find out in our video!
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