Starting from TV news, Boeing 787

Recently, due to the MH17 tragedy, there are some daily news update on the TV.  My 7 yr old daughter kept asking me about it.

- At first, I got a world map and we found a few related countries as well as cities.
- Then, she found those on the globe independently.
- After that, I have tried to explain to her about how airplanes travels around the earth. 
- Tell her about Boeing and Airbus, two giant companies who manufacture most of commercial air liners.
- We have been to Seattle in 2012.  So, I pointed her where the Boeing head quarter is.
- So far, there are videos on youtube about dream liners and dream lifters.


Boeing 787 Part Deliveries & Virtual Assembly

Assembly Animation
https://www.youtube.com/watch?v=PLAyE4xkFws

assembling
https://www.youtube.com/watch?v=f07HpUAuWgk

Assembly quick
https://www.youtube.com/watch?v=WFW5fgypGtY

Boeing DreamLifter and the History of Super Sized Aircraft

https://www.youtube.com/watch?v=_DBeVfI99Ls

Boeing 787- Dream Lifter

https://www.youtube.com/watch?v=8K4jg0TYc88

Boeing 787 - stunts
https://www.youtube.com/watch?v=qIv1ke_A4A4

Documentary
https://www.youtube.com/watch?v=AQjeM9Vgz_M


Test
https://www.youtube.com/watch?v=BBmxFWfX1YQ

Innovation
https://www.youtube.com/watch?v=M1x20TLhLvg

Saving energy like birds do
https://www.youtube.com/watch?v=srNTtuTqUBE

[fashion] gogoboi的微博

gogoboi 
location：上海 静安区
description：冒着脑残的炮火前进，前进，前进进！工作联系：gogoboi@outlook.com
verified reason：时装专栏作者

http://sinacn.weibodangan.com/user/1706372681/

这个人的东西值得跟。养眼，长知识。
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#来自星星的你# 时尚大盘点——千颂伊。她是人类史上最爱换衣服、并且最会穿衣服的女主角。21集里她总共展示了145个造型：长裙短裙、风衣夹克……任何风格她都得心应 手。她有美貌长腿，有巨星架势，还有用生命去时髦的拼搏精神，所以无论抽风犯二、生病失恋，还是事业停滞，她的造型打扮始终精妙绝伦。

http://sinacn.weibodangan.com/user/1706372681/?status=3686171319867165#utm_source=string

竖版世界地图

人大录取通知书，海水江崖

人大录取通知书

注意了，“海水江崖”纹

掰玉米问题，The Marriage Problem

（ZT)假设玉米长度的分布是已知正态分布 (mu = 1 ft, sigma = 0.3 ft)，地里一共有１００个玉米，一个一个看, 每看一个玉米，当时就要决定要不要掰了带走（没掰的不能再回头掰哦）。一共可以掰走最多５个玉米。

如何掰，能使的带走的玉米总长度最大。

====================
这样思路对吗？
2选一，we know that n1, n2, i.i.d normal. Our goal is to choose n1=m if P(m > n2) > 0.5. otherwise, choose n2.

With P(m > n2) > 0.5 , m can be found numerically by looking into erfc table.

3选二，we know that n1, n2, n3, i.i.d normal.
- If we choose n1=m1, we will choose n2=m2 if P(m2 > n3) > 0.5. This is the same as 2选一.
- We shall choose n1=m1 if P(m1 < n2 and m1 < n3) < 0.5. otherwise choose n2 and n3.
With i.i.d, P(m1 < n2 and m1 < n3) = P(m1 < n_i)^2 < 0.5. Thus, we will pick n1 = m1 when P(m1 < n_i) < \sqrt(0.5) ~0.36.
====================
The Marriage Problem

http://www.americanscientist.org/issues/issue.aspx?id=5783&y=0&no=&content=true&page=2&css=print

FIFA World Cup math

Today, Germany beat Brazil 7 to 1 on a soccer field.

This has been the first soccer game that we watched together with kids. 

Q: How many teams are in the FIFA world cup?
Find out by going to FIFA world cup page.  There is a table of 8x4. 

Q: How many players are in the FIFA world cup?
Each team can have 22 players.  Can not perform 32 x 22?  No problem break a two digit number.

Q: How many matches in total will teams play in this FIFA world cup?

Fat and bones, Benham's disk

I gave Allison 10 minutes for her journal.  Then, after reading her half-baked journal, I asked her what were fun over there.  She told me about the part about how her fat protected her bones. I encouraged her to write about it.

The top half is her half-baked journal.  The bottom half is her fun stuff.

We got together to take a look at a Benham's disk.  I could only see yellow and she could see yellow and purple.

The corresponding Wiki link is here.
http://en.wikipedia.org/wiki/Benham%27s_top

Finally, I've asked her where Alexander the Great was.  She got me Greece first and then,  Macedonia on our globe.  Henry VIII was born in (1491).  The famous galleons were between (Mania) and (Acapulco).