Posts in the “technology” category

The black hole in galaxy NGC 4889 is really big

The black hole in galaxy NGC 4889 is really big. According to this Yahoo story, “The supermassive black hole hidden away in NGC 4889 breaks all kinds of records, even though it is currently classified as dormant.”

It continues: “So how big is it, exactly? Well, according to our best estimates, the supermassive black hole is roughly 21 billion times the size of the Sun, and its event horizon (an area so dense and powerful that light can’t escape its gravity) measures 130 billion kilometers in diameter. That’s about 15 times the diameter of Neptune’s orbit around the Sun, according to scientists at the Hubble Space Telescope.”

A time lapse video of the Sun: One year less than three minutes

This is cool. It’s a time-lapse video, showing one year of the Sun hanging out in the sky, rotating around, throwing off some coronal discharges, dealing with insanely powerful magnetic forces, and other things, all in about two-and-a-half minutes. The complete video is 6.5 minutes long, and that’s because there’s some nice narration and explanation at the end. If you’re about to watch it, it’s helpful to know that it takes the Sun about a month (in Earth time) to make a full rotation:

GM: Tesla was “the crowbar that helped break up the log jam”

General Motors’ then-Vice chairman Robert Lutz said in 2007 that the Tesla Roadster inspired him to push GM to develop the Chevrolet Volt, a plug-in hybrid sedan. In an August 2009 edition of The New Yorker, Lutz was quoted as saying, “All the geniuses here at General Motors kept saying lithium-ion technology is 10 years away, and Toyota agreed with us—and boom, along comes Tesla. So I said, ‘How come some tiny little California startup, run by guys who know nothing about the car business, can do this, and we can’t?’ That was the crowbar that helped break up the log jam.”

(A quote from the Wikipedia page on Tesla.)

Cookie Monster and Siri

I tend to be known as a bit of a cookie monster myself, so I have to like this Apple ad featuring Cookie Monster, Siri, and an interminable wait for cookies to be baked:

Robot made to look human says she wants to destroy humans

It was all going so well ... and then the human creator asked Sophia, “Do you want to destroy humans?,” and the robot says, “Okay, I will destroy humans.”

Here’s the two-minute video with the unfortunate Terminator-style ending:

It sounds like Mr. Hanson and Sophia might want to learn about Isaac Asimov’s Three Laws of Robotics, which he developed in 1942.

If that video doesn’t work for some reason, you can find the video here on cnbc.com.

Will Apple post a YOY decline in iPhone sales today?

For almost nine years since the launch of the original iPhone, Apple has posted year over year (YOY) gains in iPhone sales. Today (April 26, 2016) will probably be the first time in that nine years that Apple will report a YOY decline in iPhone sales.

I mention this because it shows that the power of being the “first mover” in a market can last a long time. (While there sales my decline, Apple still makes billions of dollars on iPhone profits.)