Category Archives: Other Stuff

Nest Learning Thermostat: First thoughts

I got my Nest Learning Thermostat yesterday, and have had a chance to play around with it and the web app for remotely monitoring and controlling the settings.  I’ll probably do a product review later.

But I’d like to post an open letter to Nest with one comment or request.

Make it Social!

Now, I can’t believe those words came out of my keyboard. I’m the guy who is constantly saying “No, not everything is social”. And at first glance, I’d say “Your thermostat isn’t social”.

But guess what is social? Friendly competition.

Just as with Hypermilers, each one out to show how many more miles per gallon they can squeeze out of their hybrids, people who buy the Nest are likely to be proud of how they are saving energy, and might like a way to “humble brag” about it.

So consider this request:

  • Allow users of your web-app to publish links to their data. Energy consumption estimates, savings estimates can all be shared through the nest.com web site.
  • Allow owners to grab the data directly using a simple API via CURL or another open standard.

Just as with SETI@home, you will find people digging in to ways to save money, publish data, and generally do good things due to their competitive nature. All the while, driving more eyeballs to your product.

A perfect addition to the product family would be a simple data logger for power consumption. These already exist in other forms, with a simple non-invasive power monitor that goes on your breaker box or at the main power meter to the house. Connect that power usage data to the HVAC data, and start getting really good data for the user, and make it ~simple~ and easy to use, in line with your design ethic.

Get people competitive about saving energy. They’ll spend money to save money, especially if they can brag about it.

Why is one drive faster than the other?

I’m adding in an older Hitachi 1TB desktop drive to my FreeBSD ZFS server. I want to get it paired up with another Hitachi drive that’s in use on the system.

Since I want both of the Hitachi drives to be my mirrored drives for my “backup” pool and filesystem (where our home laptops drop their backups), and one of them is a mirror in another pool, here’s what I’m doing:

  1. Add the Hitachi drive as an additional mirror (creating a 3-way mirror) on the backup pool
  2. After the mirror above is synced, remove a Samsung drive from the backup pool
  3. Add the Samsung (removed from the backup above) to the data pool mirror that has the other Hitachi drive
  4. After the data pool is sync’d, remove the existing Hitachi from the data pool and put it as a mirror in the backup pool
  5. After the backup pool is mirrored up, remove the remaining Samsung drive from the backup pool and assign it as a global spare, leaving two matching Hitachi drives in the backup pool

During step one, I noticed that one of my two Samsung drives in the ZFS mirror is reading at double the speed of the other.

These drives are the same model, firmware, everything. What would make ZFS try to read twice the data off one drive vs. the other? Could one drive be slower than the other do to some problem with the drive, and ZFS is adapting by reading more from the more responsive drive?

Lion of Liberty: Patrick Henry and the Call to a New Nation

I just finished reading “Lion of Liberty: Patrick Henry and the Call to a New Nation” by Harlow Giles Unger, and I recommend it highly to anyone who wants to dig a little deeper and understand more deeply the period of time around the American Revolutionary War.

Patrick Henry is oft cited blindly by today’s Tea Party, but I bet that few who quote Henry have any depth of knowledge of the man, what he stood for, how complicated his life and times were for our new nation. He’s known for saying “Give me Liberty, or Give me Death”, but that’s about all our schools cover of this man, belying his complex character.

Whether you are a modern “anti-Federalist”, or a proponent of a strong Federal government, or just a student (young or old) of American history, I strongly urge you to pick up a copy of this book and give it a read.

You’ll first note how strong individuals had to be “back in the day” in order to survive, much less get ahead in the wilderness of the colonies. More importantly, you’ll note that those who became leaders in their day had a much stronger conviction (call it “faith”) in their view of the way the colonies, and then the states, should be governed, as compared to modern politicians and political bloggers. These early patriots put their lives on the line for their beliefs.  Next you’ll be amazed by how a simple country boy could become such a close scholar of any legal area of study, domestic or foreign, after having almost “faked” his way onto the bar.

Despite the willingness to die for their beliefs, the political leaders of the day were much less dogmatic than today’s pundits.  Despite Henry’s far-Libertarian views of how the U.S. government should be formed (along the lines of a loose confederation, with limited powers held by the central government), he was very pragmatic. When the U.S. Constitution was formed, severe compromise had left ambiguous wording that would allow later usurping of state’s rights by the federal government. This led to Virginia and other states openly discussion secession. Despite being like-minded about states’ rights, Henry noted how an imperfect Union was preferred over dissolution and independent states, fearing a European system that was plagued by constant wars.  He was willing to compromise, not for money or power, but in order to save the Union.

Any study of the American Revolution should include a study of Patrick Henry, to balance out the studies of Jefferson, Madison, Washington, Hamilton and Adams.  This book is very well written, and includes copious notes and indices, and a thorough Bibliography that shows just how deep the Unger went to ensure accuracy and depth.

The link to Amazon is just there to help you find the book. I have not included any affiliate links, I’m not trying to make any money from this. Find it at your local library, borrow a friends copy, or reward the author by buying a new copy.  Just read it!

My average car….

I was thinking… what constitutes the “average” car that I’ve driven (as my primary car) over the years?

So I made a list!

Though my first several years of driving, I switched primary transport often. About 8 cars in 15 years. Over the past 15 years, I’ve had only 3 cars. Slowing down with age.

First, the list:

Year Make Model
1977 Olds 98 Regency
1966 Ford Mustang 2+2
1976 Datsun 280Z
1968 Ford Mustang Conv.
1987 Ford Mustang GT
1988 Ford Mustang GT
1977 BMW 530i
1975 Cadillac Eldorado Conv.V8
1995 VW Jetta
1997 Ford Explorer
2005 Ford Mustang GT

So, what about the numbers behind these cars?

Year Make Model Engine Cyl Cubes Liters Tranny Gears
1977 Olds Old 98 V8 8 403 6.61 Auto 3
1966 Ford Mustang 2+2 V8 8 289 4.74 Manual 3
1976 Datsun 280Z I6 6 168 2.80 Manual 4
1968 Ford Mustang Conv. V8 8 302 5.00 Auto 3
1987 Ford Mustang GT V8 8 302 5.00 Manual 5
1988 Ford Mustang GT V8 8 302 5.00 Manual 5
1977 BMW 530i I6 6 183 3.00 Manual 5
1975 Cadillac Eldorado Conv.V8 8 502 8.20 Auto 3
1995 VW Jetta I4 4 122 2.00 Manual 5
1997 Ford Explorer V6 6 250 4.09 Auto 4
2005 Ford Mustang GT V8 8 281 4.61 Manual 5
AVERAGES: 7.1 282 4.6 4.1

Take-a-ways:

My 1987 Mustang didn’t last long.  Don’t ask.

My average car was closer to a V8 than an I6, not even close to a 4cyl.

The average engine size was very close to my current ride, my 4.6L Mustang.

I have chosen manuals over automatics approximately 2:1

My old 3-speed (manual and auto) transmission cars have averaged out my 5 speed cars, leaving me at a pathetic average of only 4 forward gears. I’ve never counted a 6+ gear car as my daily driver.

Almost 20% of my cars have been convertibles. Under 50% have been 4+ doors.

None of the above numbers tell you how long I drove them, how much the cost to operate, or how fun they are. (grin)