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4 people are living in an isolated habitat for 30 days. Why? Science!

2016 Feb 1, 3:27

nasa:

This 30 day mission will help our researchers learn how isolation and close quarters affect individual and group behavior. This study at our Johnson Space Center prepares us for long duration space missions, like a trip to an asteroid or even to Mars.

image

The Human Research Exploration Analog (HERA) that the crew members will be living in is one compact, science-making house. But unlike in a normal house, these inhabitants won’t go outside for 30 days. Their communication with the rest of planet Earth will also be very limited, and they won’t have any access to internet. So no checking social media kids!

The only people they will talk with regularly are mission control and each other.

image

The crew member selection process is based on a number of criteria, including the same criteria for astronaut selection.

What will they be doing?

Because this mission simulates a 715-day journey to a Near-Earth asteroid, the four crew members will complete activities similar to what would happen during an outbound transit, on location at the asteroid, and the return transit phases of a mission (just in a bit of an accelerated timeframe). This simulation means that even when communicating with mission control, there will be a delay on all communications ranging from 1 to 10 minutes each way. The crew will also perform virtual spacewalk missions once they reach their destination, where they will inspect the asteroid and collect samples from it. 

A few other details:

  • The crew follows a timeline that is similar to one used for the ISS crew.
  • They work 16 hours a day, Monday through Friday. This includes time for daily planning, conferences, meals and exercises.  
  • They will be growing and taking care of plants and brine shrimp, which they will analyze and document.

But beware! While we do all we can to avoid crises during missions, crews need to be able to respond in the event of an emergency. The HERA crew will conduct a couple of emergency scenario simulations, including one that will require them to maneuver through a debris field during the Earth-bound phase of the mission. 

image

Throughout the mission, researchers will gather information about cohabitation, teamwork, team cohesion, mood, performance and overall well-being. The crew members will be tracked by numerous devices that each capture different types of data.

image

Past HERA crew members wore a sensor that recorded heart rate, distance, motion and sound intensity. When crew members were working together, the sensor would also record their proximity as well, helping investigators learn about team cohesion.

Researchers also learned about how crew members react to stress by recording and analyzing verbal interactions and by analyzing “markers” in blood and saliva samples.

image

In total, this mission will include 19 individual investigations across key human research elements. From psychological to physiological experiments, the crew members will help prepare us for future missions.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

PermalinkComments

4 people are living in an isolated habitat for 30 days. Why? Science!

2016 Feb 1, 3:27

nasa:

This 30 day mission will help our researchers learn how isolation and close quarters affect individual and group behavior. This study at our Johnson Space Center prepares us for long duration space missions, like a trip to an asteroid or even to Mars.

image

The Human Research Exploration Analog (HERA) that the crew members will be living in is one compact, science-making house. But unlike in a normal house, these inhabitants won’t go outside for 30 days. Their communication with the rest of planet Earth will also be very limited, and they won’t have any access to internet. So no checking social media kids!

The only people they will talk with regularly are mission control and each other.

image

The crew member selection process is based on a number of criteria, including the same criteria for astronaut selection.

What will they be doing?

Because this mission simulates a 715-day journey to a Near-Earth asteroid, the four crew members will complete activities similar to what would happen during an outbound transit, on location at the asteroid, and the return transit phases of a mission (just in a bit of an accelerated timeframe). This simulation means that even when communicating with mission control, there will be a delay on all communications ranging from 1 to 10 minutes each way. The crew will also perform virtual spacewalk missions once they reach their destination, where they will inspect the asteroid and collect samples from it. 

A few other details:

  • The crew follows a timeline that is similar to one used for the ISS crew.
  • They work 16 hours a day, Monday through Friday. This includes time for daily planning, conferences, meals and exercises.  
  • They will be growing and taking care of plants and brine shrimp, which they will analyze and document.

But beware! While we do all we can to avoid crises during missions, crews need to be able to respond in the event of an emergency. The HERA crew will conduct a couple of emergency scenario simulations, including one that will require them to maneuver through a debris field during the Earth-bound phase of the mission. 

image

Throughout the mission, researchers will gather information about cohabitation, teamwork, team cohesion, mood, performance and overall well-being. The crew members will be tracked by numerous devices that each capture different types of data.

image

Past HERA crew members wore a sensor that recorded heart rate, distance, motion and sound intensity. When crew members were working together, the sensor would also record their proximity as well, helping investigators learn about team cohesion.

Researchers also learned about how crew members react to stress by recording and analyzing verbal interactions and by analyzing “markers” in blood and saliva samples.

image

In total, this mission will include 19 individual investigations across key human research elements. From psychological to physiological experiments, the crew members will help prepare us for future missions.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

PermalinkComments

Tweet from David_Risney

2015 Oct 7, 3:41
Panos Panay had an awesome performance at the Windows 10 Devices event yesterday! https://twitter.com/verge/status/651494054975434752 …
PermalinkComments

ericlaw: A nice look at HTTP/2 in practice, including use of data frame padding to attempt to thwart datalength-leak attacks.

2015 Jan 15, 9:32
Eric Lawrence @ericlaw :
A nice look at HTTP/2 in practice, including use of data frame padding to attempt to thwart datalength-leak attacks. http://blog.httpwatch.com/2015/01/16/a-simple-performance-comparison-of-https-spdy-and-http2/ …
PermalinkComments

WinRT PropertySet Changed Event Danger

2013 Jul 8, 1:46

The Windows Runtime API Windows.Foundation.Collections.PropertySet class​ is a nice string name to object value map that has a changed event that fires when the contents of the map is modified. Be careful with this event because it fires synchronously from the thread on which the PropertySet was modified. If modified from the UI thread, the UI thread will then wait as it synchronously dispatches the changed event to all listeners which could lead to performance issues or especially from the UI thread deadlock. For instance, deadlock if you have two threads both trying to tell each other about changed events for different PropertySets.

PermalinkCommentsdeadlock development propertyset windows windows-runtime winrt

DVD Exclusive - Paul F. Tompkins - Full Encore Performance (by...

2012 Apr 25, 3:36


DVD Exclusive - Paul F. Tompkins - Full Encore Performance (by comedycentral)

PermalinkCommentshumor video stand-up paul-f-tompkins

How to collect JavaScript performance data for Windows Metro apps on a device that does not have Visual Studio installed

2012 Mar 16, 2:27

Documentation for the VS JS profiler for Win8 HTML Metro Apps on profiling apps running on remote machines. 

PermalinkCommentswin8 programming technical js vs

(via Tron-Style Light Dance Performance by Wrecking Crew...

2012 Mar 15, 5:21


(via Tron-Style Light Dance Performance by Wrecking Crew Orchestra)

PermalinkCommentstron dance video music dubstep

Coding in Marble - Rico Mariani's Performance Tidbits - Site Home - MSDN Blogs

2012 Feb 6, 8:47

In short: excessive use of promises leads to a ton of short lived objects and resulting poorer pref.

PermalinkCommentsperf technical javascript promise async

Copyright King: Why the "I Have a Dream" Speech Still Isn't Free (vice.com)

2012 Jan 17, 9:37

There’s weird stuff you’d think is public domain but isn’t including Martin Luther King Jr.‘s “I Have a Dream” speech. FTA: ”If you want to watch the whole thing, legally, you’ll need to get the $20 DVD.

That’s because the King estate, and, as of 2009, the British music publishing conglomerate EMI Publishing, owns the copyright of the speech and its recorded performance.”

PermalinkCommentscopyright mlk speech public-domain

JavaScript Array methods in the latest browsers

2011 Dec 3, 6:46

Cool and (relatively) new methods on the JavaScript Array object are here in the most recent versions of your favorite browser! More about them on ECMAScript5, MSDN, the IE blog, or Mozilla's documentation. Here's the list that's got me excited:

some & every
Does your callback function return true for any (some) or all (every) of the array's elements?
filter
Filters out elements for which your callback function returns false (in a new copy of the Array).
map
Each element is replaced with the result of it run through your callback function (in a new copy of the Array).
reduce & reduceRight
Your callback is called on each element in the array in sequence (from start to finish in reduce and from finish to start in reduceRight) with the result of the previous callback call passed to the next. Reduce your array to a single value aggregated in any manner you like via your callback function.
forEach
Simply calls your callback passing in each element of your array in turn. I have vague performance concerns as compared to using a normal for loop.
indexOf & lastIndexOf
Finds the first or last (respectively) element in the array that matches the provided value via strict equality operator and returns the index of that element or -1 if there is no such element. Surprisingly, no custom comparison callback method mechanism is provided.
PermalinkCommentsjavascript array technical programming

Chromium Blog: SSL FalseStart Performance Results

2011 May 22, 10:44Links to the IETF draft document of and describes the perf benefits of SSL False Start.PermalinkCommentssecurity google browser web webbrowser https performance ssl tls technical

Caching Improvements in Internet Explorer 9 - IEBlog - Site Home - MSDN Blogs

2010 Jul 14, 3:32PermalinkCommentseric-lawrence http cache performance web browser ie ie9 technical

Kevin Frei @ NWCPP: Exception Handling Cost

2010 May 10, 7:23"Kevin Frei - Exception Hanlding Cost September 2006 meeting of the Northwest C++ Users Group. Discussion of the assembly language cost of exception handling on the x86 Windows and x64 Windows platform"PermalinkCommentsC++ programming language exception microsoft windows performance technical video

High Performance Web Sites :: HAR to Page Speed

2010 May 2, 2:52'HAR to Page Speed' is a tool that takes a HAR file (Http ARchive) supported by various HTTP debuggers and produces a page speed score. This is a great example of the value of a cross HTTP debugger file format.PermalinkCommentshttp tool debug performance web technical

High Performance Web Sites :: Call to improve browser caching

2010 Apr 29, 11:59"Over Christmas break I wrote Santa my browser wishlist. There was one item I neglected to ask for: improvements to the browser disk cache." If only it were so simple as to just increase the max size of your HTTP cache...PermalinkCommentsperformance http web browser cache technical

Perfection kills » Experimenting with html minifier

2010 Mar 10, 3:40Notes on the features and performance of an HTML minification tool.PermalinkCommentshtml javascript performance toolweb minifier web technical

[tcpm] Tuning TCP parameters for the 21st century

2010 Feb 19, 2:43A Googler's thoughts on tuning TCP params for better perf.PermalinkCommentsgoogle performance network tcp technical

Coding Horror: You're Reading The World's Most Dangerous Programming Blog

2010 Jan 20, 8:28GZip vs Deflate execution speeds. Deflate found to be much faster in particular cases and about the same in the rest.PermalinkCommentsgzip deflate performance technical http compression programming development blog

DMTHEATRICS announces the exclusive NYC premiere of THE TWO GENTLEMEN OF LEBOWSKI

2010 Jan 13, 9:35A live stage performance of The Two Gentlemen of Lebowski.PermalinkCommentsshakespeare the-big-lebowski play performance humor nyc
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