Huge crowd for HKonJ rally Saturday

HKonJ brings a huge crowd to downtown Raleigh, Feb 2017..

This past Saturday was the day of the annual HKonJ rally and march (#HKonJ #MoralMarch hashtags). HKonJ stands for Historic Thousands on Jones Street. It was one of several HKonJ marches I’ve attended. Previous marches sometimes seemed overly optimistic calling themselves “thousands” as there didn’t seem to be a lot of interest. That certainly wasn’t the case Saturday as there was arguably the biggest demonstration I’ve ever seen in Raleigh.

Kelly, Hallie, and I attended but we were running late due to all the other things that happen in the Turner household on weekends. By the time we had made our signs and were in the car, it was close to 10:30 AM. We parked the car in the parking deck at Blount and Cabarrus and snapped a quick photo before heading off. Kelly and Hallie took their signs and joined the crowd marching towards Fayetteville Street, while I took advantage of the empty parking deck to launch my drone for some aerial footage of the crowd.
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What a colonoscopy is like

I briefly mentioned last year about getting a colonoscopy in December 2015. I was scheduled for a follow-up colonoscopy a year following and so I’m going back on Wednesday morning.

I didn’t go into much detail about the whole process though I find medical procedures somewhat fascinating. I chose not to do much blogging about my experience because it seemed a bit embarrassing. This time around, I will share details because I’ve since learned how important this procedure is.

I recall last time gradually coming out of a sedation-induced fog as I lay on the post-op gurney, the doctor coming in to say that they had collected two polyps that were being biopsied. They turned out to be precancerous, fortunately, but gave me a start. I was 46 at the time and on the young side for anything like this to be discovered. It was not an enjoyable experience (or prepping wasn’t, anyway – more on that later), but I’m glad I got it done since who knows what might have happened if I had put it off.
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Chinese spammers abuse Jetpack plugin

All day long, Chinese spammers have taken advantage of an apparent flaw in Automattic’s (the makers of WordPress) Jetpack plugin. This morning, I noticed a slew of email bounces in my inbox, all with Chinese letters in them and a link to one of my blog posts. It turns out that the spammer has been clicking on the post’s “Share This” link and somehow entering their spam as the resulting email’s “From” address. Each email goes to a “qq.com” address, which is a Chinese mail provider.

The only way I could stop these emails was to turn off Sharing under Jetpack’s settings. Upgrading to the latest Jetpack (4.6) didn’t seem to help.

Apparently this has been an issue since 2014. I have no idea why this is the first time my site has become a victim nor why Automattic hasn’t figured out a suitable countermeasure yet.

Rahm Emanuel: Too many Dems care more about being right than winning – Chicago Tribune

Rahm has a point. If you’re not in power you have zero say about what gets done.

Mayor Rahm Emanuel has warned Democrats they need to “take a chill pill” and realize that they are not going to take back national power anytime soon.”It ain’t gonna happen in 2018,” Emanuel said Monday at Stanford’s Graduate School of Business in California. “Take a chill pill, man. You gotta be in this for the long haul.”

As he did last month at an event in Washington, D.C., the mayor expanded on what he believes is the road map back to power for his party — putting moderate candidates such as veterans, football players, sheriffs and business people up in Republican districts, picking battles with Republicans, exploiting wedges within the GOP and fighting attempts to redistrict Congress on partisan grounds.But this time he didn’t hold back on his frustration with some of his fellow Democrats.

Source: Rahm Emanuel: Too many Dems care more about being right than winning – Chicago Tribune

Ordinary Americans carried out inhumane acts for Trump – Baltimore Sun

When we worry and wonder about authoritarian regimes that inflict cruelty on civilians, we often imagine tyrannical despots unilaterally advancing their sinister agendas. But no would-be autocrat can act alone. As a practical matter, he needs subordinates willing to carry out orders. Of course, neither Donald Trump nor Steve Bannon personally detained any of the more than 100 people held at airports over the weekend pursuant to the administration’s executive order on immigration, visitation and travel to the United States. They relied on assistance.

The men and women who reportedly handcuffed small children and the elderly, separated a child from his mother and held others without food for 20 hours, are undoubtedly “ordinary” people. What I mean by that, is that these are, in normal circumstances, people who likely treat their neighbors and co-workers with kindness and do not intentionally seek to harm others. That is chilling, as it is a reminder that authoritarians have no trouble finding the people they need to carry out their acts of cruelty. They do not need special monsters; they can issue orders to otherwise unexceptional people who will carry them out dutifully.

Source: Ordinary Americans carried out inhumane acts for Trump – Baltimore Sun

Streaming live video from the 3DR Solo

I have had a 3DR Solo drone since last summer and have been looking for interesting ways to expand its capabilities. One thing that I thought should be possible is to stream live video from the drone while it’s in flight. The Solo controller has an HDMI port to push video to a monitor but I wanted to see if I could get to the video stream directly, through software. I’m proud to say that I figured out how to do it.

First you need a separate computer, preferably a laptop or something portable. The computer will need to connect to the WiFi network that the Solo controller creates. Once you’ve got your computer joined, make sure it’s connected by pinging the controller (IP address 10.1.1.1).

Next, create an SDP file on your laptop as discussed on the 3DR Solo wiki.

c=IN IP4 10.1.1.1
m=video 5600 RTP/AVP 96
a=rtpmap:96 H264/90000
t=0 0

… save this as sololink.sdp.

The controller will only stream video if it’s got a TCP connection from the host requesting a stream. In a terminal window, connect to the controller as follows:

telnet 10.1.1.1 5502

or

nc 10.1.1.1 5502

Now the controller should be able to stream video using a tool such as VLC or ffmpeg. For VLC, open the osololink.sdp file you created above. You should see the drone video appear on your laptop. VLC is nice for checking the video but I haven’t worked out how to send it to YouTube yet. I believe it does not properly handle the RTMP media format that YouTube needs, though I’m not sure of this.
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How to reset your body clock, and get better sleep, with hiking boots and a tent – The Washington Post

How to fix poor sleep brought on by modern technology: go camping!

Are you sick of going to bed late and waking up tired? Then grab your hiking boots and a tent. A new study suggests that a couple days of camping in the great outdoors can reset your circadian clock and help you get more sleep.

The circadian clock is an internal system that tells your body when it’s time to go to sleep and when it’s time to wake up. Scientists track this clock by measuring the amount of melatonin circulating in a person’s blood at any given time.

In a healthy sleeper, melatonin levels rise a few hours before bedtime, stay high through the night and then settle back down to daytime levels when it’s time to wake up. The period when melatonin levels are elevated is known as biological night.

In our modern society, biological night does not usually coincide with night in the natural world. Most of us stay up many hours past sunset, and we would probably sleep in many hours after sunrise if we could.

The trouble is, if your biological night begins at midnight or later, your melatonin levels may still be high when your alarm clock goes off in the morning. This leads to grogginess, and it may have other consequences, researchers say. Diabetes, obesity and heart disease have all been associated with not getting enough sleep.

Research by integrative physiology professor Kenneth Wright of the University of Colorado at Boulder found that people reset their circadian clocks by taking a six-day summer camping trip in the Rocky Mountains.

Source: How to reset your body clock, and get better sleep, with hiking boots and a tent – The Washington Post

Internet everywhere

Two recent events converged in my mind. Yesterday, I attended Google’s grand opening of its Fiber Space in Raleigh, where gigabit Internet connections are the norm. And on Saturday afternoon, I was in Garner’s Southeast Regional Library to pick up Hallie and observed that all but two of the library’s Internet terminals were occupied. It made me sad that in the years since I watched a mom and her son turned away from the library when no computers were available that a shortage of Internet access is still seems to be a problem.

I hope the big-gun Internet providers like Google Fiber, AT&T, and the rest continue working to provide Internet access to the people who need it most.

‘Beyond the extreme’: Scientists marvel at ‘increasingly non-natural’ Arctic warmth – The Washington Post

Kudos to citizen-scientist Nico Sun who assembled the temperature graphs from publically-available weather data.

The Arctic is so warm and has been this warm for so long that scientists are struggling to explain it and are in disbelief. The climate of the Arctic is known to oscillate wildly, but scientists say this warmth is so extreme that humans surely have their hands in it and may well be changing how it operates.

Temperatures are far warmer than ever observed in modern records, and sea ice extent keeps setting record lows.2016 was the warmest year on record in the Arctic, and 2017 has picked up right where it left off. “Arctic extreme (relative) warmth continues,” Ryan Maue, a meteorologist with WeatherBell Analytics, tweeted on Wednesday, referring to January’s temperatures.

Veteran Arctic climate scientists are stunned.

Source: ‘Beyond the extreme’: Scientists marvel at ‘increasingly non-natural’ Arctic warmth – The Washington Post