ricksta

11 ms·

91.
by ricksta 15y ago
Another way to increase scrolling performance is to only load images after they are visible. However, it is fairly tricky to get it to work. Doing it in HTML and CSS is indeed a lot easier.
92.
Stanford Tech Entrepreneurship Class separated from Coursera
7 points by ricksta 15y ago|0 comments
93.
by ricksta 15y ago
Is there a way to make Safari to automatically apply this javascript for all pages inside hackers new?
94.
by ricksta 15y ago
Ever since I upgraded to Lion, a double tab in Safari to zoom into the content part of the text is all it took to avoid the vomit.
95.
by ricksta 15y ago
I actually had "Thanks to Homakov" inside the title of this post but I guess I wasn't allowed to have that in the title and someone changed it.
96.
Rails Commit: Whitelist all attribute assignment by default(github.com)
95 points by ricksta 15y ago|28 comments
97.
by ricksta 15y ago
We won't have photorealistic game for a long time because how way our GPU and 3D graphics works. With a pipeline architecture, every single object inside a game is rendered individually. Things like shadows and reflections in games are all
98.
by ricksta 15y ago
are there any other classes like these with video made recently?
99.
by ricksta 15y ago
Why would they put 6mA when you are suppose to send 2mA? 9v/6mA is 1500Ohms. If they added a 3k resistor in series with their setup, they would've up the total resistance to 4500Ohms, resulting in 9v/4500Ohms = 2mA of current.
100.
by ricksta 15y ago
Thats quite a good business model. Offer free course, earn money on textbook. I think the economic of scale here can give world class educators good incentives to teach good courses, and affordable enough for the masses to get the education
101.
Stanford Online Classes Disappeared
30 points by ricksta 15y ago|8 comments
102.
by ricksta 15y ago
All these free education movement is revolutionary. Knowledges had never been so easily accessible. It used to be that education was only available to the riches. Now with people like Thrun, Ng and Khan giving quality education to anyone, a
103.
by ricksta 15y ago
Is this made by Curebit guys?
104.
My first explanatory blog post on MapReduce, How did I do?(blog.rickygu.com)
2 points by ricksta 15y ago|0 comments
105.
by ricksta 15y ago
they should've left out the touch screen, and added a keyboard and touchpad to it. Make it a android powered "netbook". Without the touchscreen, it should lower their BOM cost a bit so they can pay for better hardware that matters like a fa
106.
by ricksta 15y ago
I hope they have enough margin on those cars to keep making them. Automotive business is a tough business with fairly high margin. The BOM for an EV is much higher than regular cars and it looks like Tesla is running on quite a low margin t
107.
by ricksta 15y ago
This can be built easily by connecting 9v battery, a potentiometer, and a multimeter on current mode in series. The potentiometer basically controls the current and the multimeter displays how much you are putting in yourself. I'm curious o
108.
Harvard Prof: MegaUpload Shutdown is an Attempt to Kill Technology(torrentfreak.com)
2 points by ricksta 15y ago|0 comments
109.
by ricksta 15y ago
Value is all about perception. Something valuable to one man might be junk to another. Being a good engineer is about creating things that your target market will value. The author seemed to like one off artistic creations over mass produce
110.
by ricksta 15y ago
I like it. I'm located in Canada and when I put in my canadian zip code first just to get back to the main page again. You should give a notification when someone enters in a zip code you no longer support instead of failing silently.
111.
by ricksta 15y ago
I used Bootstrap 2 for my weekend Hackathon project. The best feature I find is the media query. Also dividing the grid from 16 to 12 makes dividing the page up into 3 columns possible.
112.
Let's discuss Hollywood's value proposition, and beat it
1 points by ricksta 15y ago|0 comments
113.
Japanese Breakthrough Makes Wind Power Cheaper Than Nuclear(wakeup-world.com)
1 points by ricksta 15y ago|2 comments
114.
by ricksta 15y ago
It looks like Anonymous took down a bunch of websites just very recently. https://twitter.com/#!/AnonDaily http://www.bmi.com/ http://USDOJ.GOV/ http://www.fbi.gov/ and more...
115.
by ricksta 15y ago
Anyone felt $170m for the Russian spacecraft is super inexpensive relative to what NASA spends on theirs? eg. $850mil for this Mars Exploration Rover http://en.wikipedia.org/wiki/Mars_Exploration_Rover
116.
by ricksta 15y ago
and of course the BMS can work with any other type of Li-on battery chemistry by changing it's protection parameters.
117.
by ricksta 15y ago
Actually my original algorithm did exactly that. The problem with that approach is the amount of energy required to change the cell voltage by 0.1V goes up exponentially once it's below 3.5V, where the charge curve flattens out. An example
118.
by ricksta 15y ago
thats correct. I'm typing this on my phone bare with my short response. From 20 to 80% state of charge. The cell voltage will be around 3.3v. When the battery gets charged to more than 3.5v, it is pretty much full. The bms will cut the char
119.
I open-sourced my EV Li-on Battery Management System(github.com)
89 points by ricksta 15y ago|12 comments
120.
by ricksta 15y ago
Maybe not right now, but maybe soon HTML5 will be more widely adopted to make flash much less important for everyday browsing.

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