The Falcon Hypersonic Test Vehicle 2 (HTV-2)

http://www.bbc.co.uk/news/world-us-canada-14497641

http://www.washingtonpost.com/national/us-defense-agencys-experimental-hypersonic-glider-launched-from-california-base/2011/08/11/gIQAZjeg8I_story.html

http://www.msnbc.msn.com/id/44109301/ns/technology_and_science-space/#.TkU8n3NmJWA

The HTV-2 fells at Mach 17 (21,000km/h). It's awesome! It is launchd by a Minotaur IV rocket. A Minotaur IV rocket is a solid fuel rocket and able to launch it quckly.

Making a recovery disk of a Macbook air with Lion

A Macbook air 2011 mid doesn't have the kind of recovery disks. Usually, we recover Lion through the internet. Of course, we need to start Utilities in the recovery partition.

However I had erased the recovery partition and could never start Utilities. It would be erased when HDD device name at the top of a device tree is highlighted. A Macbook air without a recovery partition goes net boot mode. Mine also did. It could recover with enough band width. Unfortunately my WiFi never has enough band width and net boot failed.

I brought my Macbook air to an Apple store. I made mine recovery with the store's WiFi.

After I returned my apartment, I made recovery disks as follows.
(1) insert a SD card or connect a USB HDD.
(2) copy a disk image file of the recovery partition to Desktop as follows.
$ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *251.0 GB disk0
1: EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 250.1 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3

$ diskutil mount /dev/disk0s3

$ cp -p /Volumes/Recovery\ HD/com.apple.recovery.boot/ BaseSystem.dmg ~/Desktop/

$ chflags nohidden ~/Desktop/BaseSystem.dmg

$ diskutil umount /dev/disk0s3

(3) Click BaseSystem.dmg, so it would be mounted.

(4) Use Disk Recovery to make a recovery disk from BaseSystem.dmg.

OpenCV on Mac OS 10.6

I succeeded in compiling a sample code of OpenCV on Mac OS 10.6 according to the procedure as follows.

(1) I installed OpenCV via MacPorts according to the following page.

http://opencv.willowgarage.com/wiki/Mac_OS_X_OpenCV_Port

(2) Though I had to make a symbolic link in

/opt/local/include/opencv/

as follows.

sudo ln -s /opt/local/include/opencv2 /opt/local/include/opencv/opencv2

(3) I made a project of C++ standard for Mac on Xcode and write a sample code of OpenCV.

(4) I configured project information of Xcode as follows.

Available Architecture : i386 x86_64 only. PPCs are deleted.

Header Search Path : /opt/local/include/opencv

(5) I added frameworks(library files) into the project.

/opt/local/lib/libopencv_core.dylib

/opt/local/lib/libopencv_highgui.dylib

/opt/local/lib/libopencv_ml.dylib

(6) I built and executed a sample code.

A travel to Mactan island

I have traveled to Mactan island one and a half years ago. I met a girl who is eleven years old when I was walking shore near the hotel I stayed. She was selling souvenirs and said that she didn't go to school. Her parents divorced and her father left her and her mother, she said. I wonder that why they could divorce although filipino can not divorce. However, she and I are not good at English, so we couldn't communicate more.

Investor relations data of JR East

Investor relations data of JR East

Returns of equity of JR East are as follows.
Mar/2008 12.30%
Mar/2009 11.30%
Mar/2010  6.87%

return of equity = (net income after tax) / (Shareholder equity)

JR East got high profit in 2007 and 2008 as a Japanese company. ROEs were above 10%.

However, it declined in 2009. JR East renovated many shops and stations and launched real estate business. It cost much.

ALTs remain.

I attended a workshop of a NPO on 25 June. The NPO holds a workshop once a month. However, they did't after the earthquake for several months. I have't attended it for a long time.

There were graduate students from Latin America at the workshop before the earthquake. They came out of rich familys in Latin America. After the earthquake, all graduate students had come back home and there are only assistant language teachers from UK. ALTs were participating the workshops before and remain.

Get radiation

I saw a child sitting in a window seat in an airplane. I wondered the child might get radiation more than me sitting in an aisle seat in a center row.

I thought about energy and nuclear power problem as I looked at a map of the world.

Armenia seems to be located near to Baku. I guess Armenian can live without nuclear power if oil or gas is transported from Baku.

I admire German policy of energy. Frankfurt is located far from the sea. It's hard to transport oil or gas there.