Sunday, December 14, 2008

Cayman Brac after Hurricane Paloma

In November 2008, the 71st anniversary of the great Storm of 1932 was noted to nearly the same exact day with Hurricane Palmoa hitting the island as a Category 4 storm.

With modern technology, there's photos online that document the damage this time. Here's three such slide shows:

http://www.blueoceanart.com/hurricanepaloma/index2.php

http://www.caymannetnews.com/palomabrac/index.html

http://www.caymannetnews.com/palomabrac/part2.html


Amongst others, the Rotary Clubs of Grand Cayman is accepting donations to help those in need. Their website is:

http://caymanrotary.wordpress.com/


We also understand that Robert Walton is working to help conserve the endangered Cayman Brac Parrot, as its habitat and food sources have obviously also been severely impacted by this storm.


-hh

Friday, December 12, 2008

Making a left turn in Albuqurque

It seems that the end-of-year travel isn't quite over yet. A short notice meeting, but it did the afford the opportunity to catch up with a familymember.

With a few hours on Sunday to see the region, we travelled on the Sandia Peak tram ("World's Longest passenger aerial tramway") to the top of Sandia Peak. At an elevation of 10,378 feet, this sea level flatlander was sucking wind. At least I remembered from Cuzco, Peru to go slow and not over-exert.

After attending business, the return home wasn't quite smooth, due to delays caused by heavy rain in the NYC metro area, but it could have been a lot worse than an extra ~2 hours.

And my thoughts were "At least I've now flown on American Airlines in 2008 so as to keep that Frequent Flier account still technically active", but FFM accounts vary in their rules and AAdvantage has expired another 34,625 miles on me this year.

And in this age of computers, my most recent flights on AA from two days ago still haven't posted their mileage credits.

...and the airlines wonder why I have clear preferences as to where I take my business when I have a reasonable choice in the matter.

-hh

Wednesday, December 3, 2008

A busy fall...

The last few months have been quite busy, with a bit of globe-hopping. Within the past three months, I think there were 3 weeks in Europe, 2 weeks in the Caribbean, 2 weeks in Africa and a quick trip from the East to the West Coast to present a paper and vamoose back home.

Thus, there's the latest batch of travel photographs organized and sorted while getting ready for winter to hit us locally. In taking a break from that project (1000 down, 2000 to go), the subject of travel while exploring found an interesting website utility, namely the ability to make up personal "Been There" travel maps from Phillips 66.

Domestically:



Internationally:



If you're looking for changes since 2007, well, there's just Denmark.
In the meantime, there's still plenty of things on the "1000 Places before you Die" list that remain to be worked on.

And since it is that time of year for one's annual holiday contribution to Capitalism, it is quite obviously way behind schedule as a result of not really being at home for half of the time over the past few months. Plus there's more important things. Just last night, we spent a solid hour on an expensive long distance phone call to a friend who survived having half of their house fall on top of them from a Category 4 Hurricane a few weeks ago. The gift wasn't really our offers to send Care packages, but simply the opportunity for a listening ear for them to be able to give that big emotional 'dump'. Nevertheless, we'll be putting together a package for them over the next week or so with some surprises, since they have months of clean-up and recovery to do.


-hh

Tuesday, November 25, 2008

Evacuation Day ... and local history

(backdated)

The obscure US Holiday of Evacuation Day dates from November 25, 1783, to commemorate when the British left the USA on that date in 1781, marking a final end to the Revolutionary War.

The 225th Anniversary of Evacuation Day was in the news locally in New Jersey this month, since NJ was a crossroads of the American Revolution, and to this day, there's several "George Washington Slept Here" historical homes in the area, as well as his HQ for Jockey Hollow, the 1779-90 Winter Bivouac for the Continental Army.

Upon reading of this local history of how the local hilltops were used to light fires to serve as communication (warning) beacons for an impending British attack, we were debating if on the night of the 25th we could find a few hours venture out a dozen miles down the road to Fort Nonsense in Morristown, where the newspapers were reporting that there would be a modern beacon lit to commemorate.

Naturally, we didn't make a more proximate connection. The name of the housing development that we live in is ... Beacon Hill.

Yes, there was another one of the 23 known hilltop signals located at the top of the hilltop ridge that we live on. It was restored last year by Denville Boy Scout Troop 118.

Its yet another surprise discovery of local history ...


-hh

Wednesday, November 12, 2008

It done burned down

(backdated)

Dateline: Tanzania

Some of our time this month was spent on Safari in southern & western Tanzania.

While at Ruaha National Park, we spent some time chatting with the camp manager, who had previously been working at Mikumi.

We found that a controlled fire ... done poorly ... last season had burned out of control and up over the hilltop where a camp that we had previously stayed at, destroying all of the facilities.

Thus, this Banda - it done burned down:


Great views, great memories ...

Fortunately, word is that the Foxes do intend to rebuild the camp; it will just take some time.


-hh

Saturday, July 12, 2008

Iranian photoshop manipulation? An illustration

There's been media reports (eg, NY Times) this week about Iran's missile test ... and how the images distributed very well likely might have been faked - - a Photoshop manipulation.

I'm sure others have already done this, but I didn't notice any examples, so I've put one together quickly for anyone else looking for the same: here's a very simple Photoshop overlay of the two ("4 missiles" and "3 missiles") photographs, so that people can decide for themselves how suspicious they are of if this is (or isn't) a manipulation.




In other words, 'decide for yourself'.
(you can click on the image for a larger version)


-hh

Monday, July 7, 2008

Green Snake Oil?

In the news today: Toyota is planning on putting a solar panel on their Prius.

Sounds good, doesn't it? An electric hybrid that's able to be partially powered by the sun.

Well...

How are we sure that its not essentially just a clever sales gimmick?

Here's one take on the "Reality Check" of physics.

A conventional solar panel (Mitsubishi; Sharp) provides 185W of output, and is 65" long x 33" wide: call it roughly 5ft x 3ft. Let's assume no sunroof, so you can install two of them on the roof of a car like a Prius.

Those two panels result in roughly 370W of power under ideal conditions. Let's assume that there's another 10% of roof real estate available and round up the number to a conveniently easy to work with 400W of output.

The article (see link) reports that the A/C system needs up to 5kW of power. Standardizing units, that's 5,000W.

Thus, the panel can provide (400W/5,000W) = 8% of the A/C system's peak demand.

Thus, you can run your A/C "totally on solar" if you only run it at ~8% of its capacity. That doesn't sound like all that much cooling capacity to me.

Okay, let's look at things differently: let's assume that the solar panels can charge the battery pack, even though this isn't mentioned in the article. While we're also at it, let's be an irrational optimist and assume that this storage will be 100% efficient and has no other trade-off factors (such as needing a bigger battery).

So how much power can we store? Classically, solar systems are discussed and designed around the time of day which results in roughly 80% of the total daily collection. This is commonly defined as 10AM-3PM, which is a period of 5 hours. True, there is solar gain before 10AM and after 3PM, but generally it isn't planned for too much, as the sun angle, strength and shading factors are some of the factors for why the panels run at below their ratings and all of these other hours of daylight only collect around ~20%. This is classical Pareto Principle.

So in those 5 hours of good gain, the panels will run at their rating, so this sytem will generate 5hr * 400W =2,000W-Hrs.

Continuing to assume that idealized 100% efficient storage battery, this means that the system can provide 0.4 hours (24 minutes) worth of full A/C per day. For a to/from work commute, that's 12 minutes each way...assuming that you park your car in the sun at work and don't go out to lunch.

Okay, it is better than nothing, but do keep in mind that those panels aren't free. Their retail price is around $2,000.

And more importantly, they aren't weighless. In standard trim, they're just over 35lbs each. Figure that with packaging economies, they can be reduced from 70lbs down to around a 50lb increase in vehicle curb weights. Now ask yourself: an increase of 50lbs in the vehicle's weight hurt the car's fuel economy by how much?

And ditto for that idealized 100% efficient battery. To do 2000 W-hr worth of power storage, you're roughly going to need a battery roughly the size/capacity of a standard automotive Lead-Acid battery. In NiMH, I'd SWAG it at another $500 and 25-30lbs increase in curb weight.

This is just a quick "back of envelope" system analysis, but it looks like at least a 50% salesmanship snake oil for a 'Green' product to me at this point. I'd personally like to see a more comprehensive one done with real values, to specifically include how much the vehicle's cost goes up, weight goes up and MPG goes down (because of that higher weight).

Don't hold your breath.


-hh