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Jeremy Hylton
Works at Google
Attended M.I.T.
Lives in Easton PA
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Jeremy Hylton

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One half a gigameter!
One of our balloons has had quite a journey over the past few weeks. It did a lap around the world in 22 days, and has just clocked the project’s 500,000th kilometer as it begins its second lap. It enjoyed a few loop-de-loops over the Pacific ocean before heading east on the winds toward Chile and Argentina, and then made its way back around near Australia and New Zealand. Along the way, it caught a ride on the Roaring Forties — strong west-to-east winds in the southern hemisphere that act like an autobahn in the sky, where our balloons can quickly zoom over oceans to get to where people actually need them.

Traversing the stratosphere is particularly challenging this time of year because the winds actually change direction as the southern hemisphere moves from warmer to colder weather, resulting in divergent wind paths that are hard to predict. Since last June, we’ve been using the wind data we’ve collected during flights to refine our prediction models and are now able to forecast balloon trajectories twice as far in advance. In addition, the pump that moves air in or out of the balloon has become three times more efficient, making it possible to change altitudes more rapidly to quickly catch winds going in different directions. There were times, for example, when this balloon could have been pulled into the polar vortex – large, powerful wind currents that whip around in a circle near the stratosphere in the polar region – but these improvements enabled us to maneuver around it and stay on course. We can spend hours and hours running computer simulations, but nothing teaches us as much as actually sending the balloons up into the stratosphere during all four seasons of the year.

Take a look through our photo album to see some of the specific improvements that have been made to the balloon technology, thanks to the lessons we’ve learned in flight.
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Jeremy Hylton

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One of my favorite places
The Grianán of Ailech is one of the most iconic sites of North-West Ireland. This was the former residence of the powerful Kings of Ailech, the Uí Néill dynasty. In the first few centuries AD the Uí Néill controlled vast swathes of territory in the northern half of the island of Ireland. However as their power began to wane they became locked in a bitter dynastic war with the Kings of Munster. The Grianán was recorded in the Annals as being destroyed in AD 676, and then destroyed again in 1101. 

The site is situated high above the surrounding landscape and offers absolutely spectacular views. You can find it around 8km north-west of Derry, it is well signposted from the N13 between Derry and Letterkenny. For more information about its history and how to get there please visit

#griananailech   #countydonegal   #irishhistoricalsites   #irishhistoryandheritage   #irisharchaeology   #irishhistory   #wildatlanticway   #donegal   #archaeology   #history   #ireland  
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Jeremy Hylton

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First snowfall of the year
Peter J. Farrell's profile photoCarrie Havranek's profile photo
cool shot! love this.
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Jeremy Hylton

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I thought the "live music video" conceit worked really well. They made good videos and they were fun to watch in person.
It was a night of musical innovation and unscripted insanity--available now in its entirety. 
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There's a great new feature for local search!
Next time you’re planning a brunch or a date night, check to make sure the menu has something to satisfy everyone in your group, without having to browse through several restaurants’ websites. Just search Google to show you the menu for the eatery you’re considering and you can see it right on the top of your search page—complete with tabs for different parts of the menu (like appetizers, brunch or dinner) and, often, prices—before you make your reservation. Menus are available in the U.S. only for now. Bon appétit!

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Slightly enhanced version of my snowfall photo!
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Great work
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Jeremy Hylton

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The whole case started with a terrible lack of judgment, finding a discipline problem where they should have found a teaching opportunity. These students were suspended because the principal thought middle school students wouldn't understand that the message was about breast cancer. Years later, the school continues to waste time, money, and attention on the case. Investing any part of that time, money, or attention to help students understand would have been better.

In the first round of litigation, the principal made this argument:
"At middle school age, these students are going through varying degrees of growth and maturity levels.... My concern (is) not all students may understand it's just for breast cancer support, because the I Heart Boobies bracelet can be taken as a sexual connotation."
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When I was on the ACLU's state board and on the personnel committee, I was responsible for getting their Attorney (Mary Catherine) hired :-)
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Jeremy Hylton

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This is the big story in tech today: 


I'm just going to post my thoughts on this. Standard disclaimer: They are my own thoughts, and not those of my employer.

Fuck these guys. 

I've spent the last ten years of my life trying to keep Google's users safe and secure from the many diverse threats Google faces.

I've seen armies of machines DOS-ing Google. I've seen worms DOS'ing Google to find vulnerabilities in other people's software. I've seen criminal gangs figure out malware. I've seen spyware masquerading as toolbars so thick it breaks computers because it interferes with the other spyware.

I've even seen oppressive governments use state sponsored hacking to target dissidents.

But even though we suspected this was happening, it still makes me terribly sad. It makes me sad because I believe in America. 

Not in that flag-waving bullshit we've-got-our-big-trucks-and-bigger-tanks sort of way, but in the way that you can looked a good friend who has a lot of flaws, but every time you meet him, you think, "That guy still has some good ideas going on".

But after spending all that time helping in my tiny way to protect Google -- one of the greatest things to arise from the internet -- seeing this, well, it's just a little like coming home from War with Sauron, destroying the One Ring, only to discover the NSA is on the front porch of the Shire chopping down the Party Tree and outsourcing all the hobbit farmers with half-orcs and whips. 

The US has to be better than this; but I guess in the interim, that security job is looking a lot more like a Sisyphus thing than ever. 


Also of note, this article from September may call some recent technical decisions into relief:

#nsa   #surveillancestate  
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In his circles
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Have him in circles
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Software Engineer
  • Google
    Software Engineer, 2004 - present
  • Zope
    Software Engineer, 2000 - 2004
  • BeOpen
    Software Engineer, 2000 - 2000
  • CNRI
    Senior Member of Technical Staff, 1996 - 2000
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Easton PA
Baltimore MD - Cambridge MA - Dublin Ireland - Brookline MA - Wanamakers PA
Contact Information
I work on search at Google's New York office.  I work on local search and Youtube search.  I've also worked on realtime search and blog search.  I've been a contributor to the Python programming language since 1996.
Bragging rights
guest caller on Car Talk
  • M.I.T.
    1990 - 1996
  • U.C.D.
    1992 - 1992
Basic Information
Jeremy Hylton's +1's are the things they like, agree with, or want to recommend.
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This donut stand is tiny, but they'll fry a fresh batch of donuts while you wait and roll them in sugar. Cheap, sweet, and delicious.
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This is my regular dry cleaner. It's good.
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Good but not great.
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