In reply to see. It's actually wordpress.com...
https://daniellefong.com/2008/01/28/incompleteness-and-halting-godel-and-turing/#comment-12357
In reply to alfredas. It's a good idea, and we will definitely deploy in Europe soon.
https://daniellefong.com/2012/01/22/green-dreams-life-in-the-year-of-the-rabbit/#comment-12356
In reply to 6H057. It's real
https://daniellefong.com/2008/01/28/quantum-field-finance/#comment-12355
In reply to Shai. We have a bunch of things we are keeping secret, because they moved from what they...
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-12354
In reply to mak. Thank you!
https://daniellefong.com/2008/05/15/advice-to-the-bright-and-young/#comment-12353
In reply to Jason M. Hendler. Sad to say but they did change course and then end up doing an awful lot that we are public abo...
In reply to Mitch. Thanks!
https://daniellefong.com/2013/11/15/a-case-for-immortality-in-a-finite-universe/#comment-12351
In reply to Alaaeldin A. Assal. In pilot this year, commercially in two.
In reply to Roman. Hi, sorry to not get to this. Feel free to send me what you've got to my email, but please note that we'...
In reply to pa32r. I see. Well, that's not what we intended. In engineering, you break ...
https://daniellefong.com/2012/01/22/green-dreams-life-in-the-year-of-the-rabbit/#comment-12348
In reply to bob ika. No, things are working pretty well. There were minor bum...
In reply to Huy Bui. Please send me an email with your needs. We might have something -- but it's a serious prototype! At si...
In reply to Jonathan Rogers. You can send your resume to me, but unfortunately we're not quite at a stage where we can sup...
In reply to r4gt4g. Thanks! We will eventually shrink to consumer scale, if ...
In reply to Stefan Scheiner. There's relatively little evaporation because the temperature never goes up much and the volu...
In reply to James Tsang. Sounds like you are! Thanks!
In reply to pa32r. Hi there, I see two mistakes, one big and one small. Firs...
Hi Danielle, OK, I confess that I'm out of my depth. But over in that article about LightSail in Fortune's "Shape the Future" section, you quoted 30kWh/m^3. I can find no way to get to such a num...
Hi Dani! I just discovered you and your company. You are truly a fascinating person and what you are doing is very inspiring. I wish I was just as smart and successful as you and doing something ...
Dear Mrs Fong., i am an artist that is exploring the cross-section Architecture, Technology and Plants. Plant-In City is inspired by urban design and city systems that support plant-life and sust...
I think you're very beautiful :)
Hello Danielle! My name is Jonathan Rogers I am pursuing my undergraduate as a Mechanical Engineering student at the University of Arkansas. I have currently been working on a sustainable idea us...
re: Light sail energy - Have you thought about using the Tesla Turbine anywhere in your energy conversion process ?
https://daniellefong.com/2008/01/28/third-places/#comment-11346
Reblogged this on Entre les lignes ....
https://daniellefong.com/2012/01/23/trade-trade-secrets/#comment-11292
Hi Danielle! Excellent, exciting work! i know there must be so many doubts and the timelines must seem so far off but this tech is truly exciting and promising. Just imagine the hurdles in the wa...
P.S.: I realize I'm grossly oversimplifying (especially when talking about a "boiling point" in the context of large pressure changes), but you get the idea I hope.
When I watched your Solve for X video, a random thought I had was "I wonder how much of that water spray ends up evaporating...". That led me to wondering if enthalpy of vaporization could also b...
to be held on Thursday evening, October 16th. In addition to a keynote from LightSail Energy’s Danielle Fong, there will be an Energy Innovation Case Competition and a Poster Exposition and C...
Hi Danielle, & Brave and Beautiful Lady! Thank you for solving one of the biggest challenges on earth that is 'Energy Storage'. Hope we will see the result soon. Also with your impressive work, y...
Where you at Danielle?! We are waiting to hear more of the innovations at Lightsail! Is it possible that the system is not working so feasibly that you had to lay off employees this year?
In a later post (and entry at SciAm) you wondered where the "90%" figure originated. It originated here.
https://daniellefong.com/2012/01/22/green-dreams-life-in-the-year-of-the-rabbit/#comment-9633
I certainly agree with this, though it isn't going to happen in the current political environment. Heck, I suspect that there are many in Congress who would abolish such grants entirely, contendi...
https://daniellefong.com/2013/11/15/as-we-may-discover/#comment-9628
be held on Thursday evening, October 16th. In addition to a keynote from LightSail Energy’s Danielle Fong, there will be an Energy Innovation Case Competition and a Poster Exposition and Conte...
Danielle, are you familiar with the new circuit breaker technology being developed by ABB, the European power and automation company, which should allow high voltage DC transmission lines to conn...
Globally, we have just past the point where most of humanity now dwells in cities. Yet, very few city dwellers have any influence on the urban landscape in which they dwell. Cities are complex or...
https://daniellefong.com/2013/10/10/a-systems-thinker-a-systems-doer/#comment-8700
Hi Danielle, In 2010 I developed the same system but further theoretical calculations I didn't do (absence of financing and application in my country). I calculated system for the private house (...
I have often wondered if this earth IS humanity's life boat. That is to say a breeding ground of evolution that was predetermined by a formula created and put here on earth by a species like us, ...
https://daniellefong.com/2013/11/15/a-case-for-immortality-in-a-finite-universe/#comment-8470
I have read about this tech before, the storage of energy in compressed air, But you have a very simple way of solving the problem. There is much work to be done in this area. I found your name a...
Danielle, I read this post last year, and the first three sentences are among the best I ever read. “Your revolution will not be stolen. Ideas don’t change the world by themselves. They need ...
https://daniellefong.com/2012/01/23/trade-trade-secrets/#comment-7116
US-Magazin Forbes nennt sie bereits ein Wunderkind – und tatsächlich: Danielle Fong hat einen beeindruckenden Lebenslauf. Heute 25 Jahre alt, schmiss sie vor Jahren die Schule, um
How does lightsail energy’s compressed air energy storage compare to flywheel energy storage? It looks like the only advantage is transportability.
Dear Mrs. Fong, I read with a lot of interest all I could find on the web about the energy storage technology you are trying to develop together with your colleagues at LightSail Energy. While, f...
Hallo Danielle, When do you see your work turning into products applicable to building PV Micro Grods with ESS using CAES Alaaeldin A. Assal +49 151 587 80 700
Ms. Fong, Your article is correct in that the central limit theorem does not work well in models in which the data are not entirely independent. However, the correct application of the theorem is...
In reply to AIM. it takes a reasonable amount of time to write; usually not too much, only a couple ...
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-4296
In reply to mdd. Where on earth do you get the time to actively blog and at the same time work on sa...
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-4294
In reply to Micah Lowenthal. More than half the world believes in god, less than half t...
https://daniellefong.com/2013/11/15/a-case-for-immortality-in-a-finite-universe/#comment-4047
Provocative piece. "How different would the republic be, were Plato to have stayed with us?" I suppose that it depends on whether Max Planck was right when he said "Science advances one funeral a...
https://daniellefong.com/2013/11/15/a-case-for-immortality-in-a-finite-universe/#comment-4046
I agree with you that the single greatest thing to come from immortality will be a net increase in wisdom. The single greatest expenditure of societal resources is the cyclical re-education of ev...
https://daniellefong.com/2013/11/15/a-case-for-immortality-in-a-finite-universe/#comment-3979
An interesting thought sequence. It reminds me a fun book I read for a Science and Religion course in school: Frank Tippler's book (http://www.amazon.com/The-Physics-Immortality-Cosmology-Resurre...
https://daniellefong.com/2013/11/15/a-case-for-immortality-in-a-finite-universe/#comment-3977
an important code snippet, it is pretty much gone forever. A really cool workaround I found here involves storing all of my Mathematica notebooks in a Dropbox folder that has automatic versioni...
In reply to Suhaib. 3300x is the approximate volumetr...
"By spraying water into the air during compression, most of the heat goes into the water, rather than the air. And water has a much higher capacity than air – 3300x at standard conditions. You ...
Danielle--Thank you so much for sharing this essay. It has made a profound effect. I too, share your optimism. Sending hugs from San Francisco.
https://daniellefong.com/2013/11/15/a-case-for-immortality-in-a-finite-universe/#comment-3385
Your enthusiasm is so nicely formulated that it is tempting to follow it blind. And I also appreciate that it is easier to make a critic than to write a convincing theory. The humanity is going t...
https://daniellefong.com/2013/11/15/a-case-for-immortality-in-a-finite-universe/#comment-3384
It’s an interesting premise for sure and I really love your optimism. Your faith in humanity and hope for the future is infectious and that’s a good thing. From a social engineering perspecti...
https://daniellefong.com/2013/11/15/a-case-for-immortality-in-a-finite-universe/#comment-3371
Imagine a world full of people with 18th century opinions. Then, imagine those people (and therefore, most of their 18th century opinions) sticking around indefinitely. Imagine those people worki...
https://daniellefong.com/2013/11/15/a-case-for-immortality-in-a-finite-universe/#comment-3348
Just want to say keep up the good work I like your reflections on different subjects. I dont pretend to understand everything (Probably because im not a scientist etc. ). But what i do understand...
https://daniellefong.com/2013/11/15/as-we-may-discover/#comment-3347
OK so numbers rather than emotions... Yes the statistics show that as people move into urban/city environments birth rates are falling....though this is largely due to improved child mortality..w...
https://daniellefong.com/2013/10/10/a-systems-thinker-a-systems-doer/#comment-3289
In reply to Danielle Fong. Yes I take your point that urbanisation is the one thing which longer t...
https://daniellefong.com/2013/10/10/a-systems-thinker-a-systems-doer/#comment-3280
In reply to Roger Rhodes. Thank you for caring. However, I believe you are reasoning by the drama ...
https://daniellefong.com/2013/10/10/a-systems-thinker-a-systems-doer/#comment-3272
Firstly let me say I am a big fan of what Lightsail is trying to do with energy storage.. it is a long time since I have seen relatively simple mechanical innvoation (rather than consummer gadget...
https://daniellefong.com/2013/10/10/a-systems-thinker-a-systems-doer/#comment-3269
Danielle, I saw this press release awhile back, and just assumed it was Lightsail Energy's project, but see that it came from SustainX: http://www.engadget.com/2013/09/16/sustainx-turns-on-first-...
Thanks for this. I was one of the so called 'gifted' and was constantly bored throughout school. Even at the University where I went at a very young age - I was getting excellent grades without t...
https://daniellefong.com/2008/05/15/advice-to-the-bright-and-young/#comment-3132
Very good article, almost brought a tear to my eye. I was one of the so called 'gifted' and was constantly bored throughout school. Even at the University where I went at a very young age - I was...
https://daniellefong.com/2008/05/15/advice-to-the-bright-and-young/#comment-3131
Dear Danielle, Hello, just want to share more ways of making your goals achievable. I really am just an ordinary guy with a trade school degree and an active imagination with faith in god. I pray...
https://daniellefong.com/2012/01/23/trade-trade-secrets/#comment-3099
Hi Danielle, Thanks for your notes. I was wondering what is the difference (if any) between what LightSail and SustainX are doing. Cheers, Shai
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-3041
Numbers are the Supreme Court of science. However Godel proved that we may not prove everything. Science needs numbers. There must be Science and Physics Foibles!!
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2971
In reply to steve carrow. It's not a bad idea but it's a lot of additional complication. It's the sort of thing you might d...
In reply to Larry Stewart. Yes we've thought about it and may apply to the ARPA-E FOCUS FOA on that topic.
Just curious if you have looked at direct mechanical linkage between wind turbines and air compressors and how the conversion loss tradeoffs compare?
Danielle You convert renewable energy to electricity then store it as compressed air then convert it back to electricity as needed. Wondered what you thought about CSP (Concentrated Solar Power) ...
You probably understood that I meant trough, instead of through.
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2916
Also, wouldn't this work even better as a solar thermal hybrid system? A solar concentrator could heat up the air about to enter the expander, allowing the whole system to return perhaps more ene...
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2913
I think we need an affordable, efficient, and reliable energy storage solution in Ontario to reduce the amount of money we need to PAY other provinces and states to take our spare electricity fro...
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2912
In reply to miket. Good call, it would help, yes :-) We have thought about it.
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2901
Would your technology improve the efficiency of split cycle gasoline or diesel engines. Split cycle engines dedicate some of the cylinders to air compression and the others to the combustion and ...
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2900
In reply to Richard Li. The objective is definitely to beat the market price or, in the worst case, ...
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2824
In reply to Danielle Fong. Thanks for the correction. In your calculation, if we count for the energ...
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2820
In reply to Adriana Rohr. 60 - 70% roundtrip.
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2818
In reply to Richard Li. Your calculation is correct, but you're making an invalid assumption. The ma...
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2817
Danielle, I am Richard Li, an angel investor, PhD in Applied Physics from Stanford, current working on R&D at Invensense (8th fastest growing high tech company of North America in 2012 from Forbe...
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2814
So is it 60-70% efficiency in one direction you are hoping to achieve? It is not clear in your essay.
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2806
Hey Danielle, I appreciate your clarification, I saw the SciAm article and was curious where the commenters were going wrong. One note though; your link on this blog post isn't directing to the a...
https://daniellefong.com/2013/06/22/a-brief-note-on-thermodynamics/#comment-2702
In reply to Eddy. Not yet but I think it's a good idea.
Danielle, Have you spoken with Brayton Energy LLC about their hybrid solar project for air compression? http://www.braytonenergy.net/
In reply to Marko Cosic. Yes, it is a very contorted market structure. Oh well. Yes, there is a good market for what you su...
In reply to Rong Zhang. Congratulate you on your curiosity; sorry for the short supply.
Have you worked out th...
Hi Danielle, Very impressive work! Have you worked out the equipment cost for each kWh energy capacity? Just wondering how this comparing with batteries. So each of your storage system will inclu...
I'm glad I asked Google who this Danielle Fong on LinkedIn is - this is a fabulous (both in significance and style) collection of insights that you've shared here. The potential of the LightSail ...
Hi Danielle, Is this story real? Or is it totally made up... I am asking because I have heard before that it is not uncommon for hedge funds to use advanced theoretical physics with the goal of p...
https://daniellefong.com/2008/01/28/quantum-field-finance/#comment-2511
Hi Danielle, I'm just interested on renewable energy and I've been long aware of the problem of generating excess electricity in the night when demand is lowest (whichever means, wind, hydro). My...
Reply it you are able...would love to give input and help on energy storage projects. I lost my enthusiasm for these ideas a while ago. Nice to see others are still interested in them.
http://social.csptoday.com/technology/cost-benefits-csp-storage?utm_source=http%3a%2f%2fuk.csptoday.com%2ffc_csp_pvlz%2f&utm_medium=email&utm_campaign=CSP+brief+22+Apr+13+en&utm_term=The+Cost+Ben...
https://daniellefong.com/2012/08/27/defusing-the-carbon-bomb/#comment-2271
Presumably you've learned a ton about the connections since 2008, but one very amusing read about the connections is http://arxiv.org/abs/hep-th/9710148 , "The Physics of Finance".
https://daniellefong.com/2008/01/28/quantum-field-finance/#comment-2246
This is really terrible. We only want undo for the text we enter, I don't care about the kernel state. (read e.g. http://forums.wolfram.com/mathgroup/archive/2009/Mar/msg00985.html ). I guess you...
the age of 21, Danielle Fong cofounded LightSail Energy, a venture focused on energy storage via compressed air, with heat
Dear Danielle, in your levelized cost comparison you use gas price of $7/mmbtu. Gas CCGTs are currently one of the most used and the most economical option for meeting peak demand or for balancin...
https://daniellefong.com/2012/01/22/green-dreams-life-in-the-year-of-the-rabbit/#comment-2198
In reply to David Foster. It depends -- we aim for about a 30 C ∆T. If you lose the whole ∆T, it is as if the atmospher...
In reply to David Foster. Yes. As you can imagine the distinctions between using water instead of air, and storing heat at ...