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  • How Google Plus Screws Youtube Comments

    Posted on September 25th, 2014 EEVblog 18 comments


    I’m a full time Youtube content producer, and I like responding to comments, it’s a way for me to directly interact with my audience. It’s an important thing for a content producer to be able to do. Nay, essential. To say thanks, answer a question, respond to criticism, correct something, etc.

    Yet I cannot respond to some comments on my own freaking videos, and that really pisses me off!

    Take a look at this, here is an example of a post on one of my own videos:

    YoutubeComments1-arrow

    Note how there is no Reply button next to the first comment. No one can reply to it, not even the video owner!

    Notice how the REPLY button is missing on the comment! It is impossible for the video owner (or anyone else) to reply to that comment.
    Why?
    Well, the retarded Google+ integration with Youtube of course. To post on Youtube you must have a linked Google+ account. And in the settings menu for Google+ is an option that says “Who can comment on your public posts”.
    But because of this new fangled integration, Youtube comments count as Google+ “posts”.
    That means if you select “Only You”, which might sound like a good thing from a privacy point of view, then no one, including the video owner can reply to your comment on Youtube!

    It seems that many people are simply unaware of how this Google+ setting effects their postings on Youtube.
    Here is a DIRECT LINK to the settings page so you can change it to “Anyone”, which is what you need to do so people can reply to your comments onYoutube.

    YoutubeComments2-Arrow

    Your Google+ settings page. You have to set this setting to “Anyone”

    So if you are wondering why I don’t respond to your comments on my videos, this could be the reason why. It’s not me, it’s a setting in your Google+ account.

    Not allowing a Youtube video owner to respond to comments on their own videos is nothing short of retarded. Google really need to fix this shit, seriously.

  • Australian Crowd Source Equity Funding Report

    Posted on September 22nd, 2014 EEVblog 2 comments

    I have been made aware of this Australian government requested report on crowd sourced equity funding, and associated suggested legislative framework to promote it.
    Original DOC file is HERE
    PDF version HERE
    I have not digested the 244 pages of it yet!

  • So Who Is Altium Buying?

    Posted on September 5th, 2014 EEVblog 20 comments

    Today came the news from the ASX that Altium shares have been put on a voluntary trading halt:

    “Pending an announcement by Altium in relation to a proposed capital raising by institutional investors”

    Now, this is very interesting indeed for several reasons:

    1. Altium have not taken investment since they originally publicly floated the company 15 years ago in 1999 in order to raise capital to buy several companies and their technology in order to get into the embedded system/FPGA space (which they ultimately failed at as everyone but them expected).
    2. Altium has always, and continues to have essentially zero debt.
    3. Altium has plenty of cash in the bank, $22M of it or so.
    4. Altium is about to announce their new FREE (+ low cost) package and enter the low cost PCB tool market as they have promised.
    5. Altium has record sales, and the highest share price in over a decade.AltiumSharePrice10years

     

    So why does a company with zero debt, a lot of cash, record sales, a new product about to (hopefully) shake up a new market, and no real history taking money, want with a sudden influx of money from institutional investors?

    Expansion

    Companies take money in order to expand into bigger markets and/or buy companies to enable that to happen. So it can’t be because they want to hire more staff, they could easily do that with the cash to hand. And that would of course be a silly reason for any institution to invest in them. And it can’t be because they want to buy some small-time company, they could also do that with the cash to hand.

    So what’s left? Well, it seems pretty obvious that Altium is gearing up for a big acquisition (or two?).

    Someone Knows

    It seems that someone has caught wind of this in the last week or two, because the share price has rocketed just before the trading halt.
    I wonder is any other related company has also jumped? Hmm…

    AltiumSharePrice2014

     Who?

    So who is Altium going to buy with all this influx of new institutional cash?
    Whoever it is I certainly hope they don’t blow it like they did with several acquisitions on the past (*cough* 15% of the company for Morfik *cough*).
    But is seems Altium are much more level headed these days, so I think they will do something good with it.

    Altium does have several weaknesses in key areas needed to enable their push into the higher end of the market as they have promised investors. Things like signal integrity, auto routing, simulation, thermal analysis, and you can no doubt think of other areas.

    Polar Instruments immediately comes to mind. That would give them the signal integrity solution they badly need.

    An Autorouter that actually works would be high on the list too.

    Altium Designer has great 3D CAD integration, but no 3D CAD editing capability. So it wouldn’t surprise me if they bought a 3D CAD tool company for better integration there.

    And before anyone mentions it, no, I’m pretty sure they are not buying Eagle or another low end player. Because Altium really do have their own free / low cost package coming out soon to compete head-to-head with Eagle and others. It’s real, I’ve been given a sneak peek at it, because they wanted my feedback on it after my rant shook them up a bit and helped them change direction (for the better):

    Not only that, but Eagle wouldn’t be for sale, it is far too strategically important to Element 14. Forget that.

     

    There is lots of interesting stuff in Altium’s latest Investor Presentation, but not much we haven’t seen before. And nothing that really hints at who they are going to buy or why.

    One thing that does scare me is the further emphasis on the Internet of Things and Web 3.0, and all that cloudy stuff. They call it a “Mega Trend”. Can you hear the groan from here? I sure hope they keep focus on the core PCB tool (as they have promised), and not go off on some silly adventure buying a cloud services company or some such. But hey, I wouldn’t put it past them.

    A component search and integration company wouldn’t surprise me though, that is another key emerging area. And/or perhaps with the new push into the Maker market they want to own and tie in a PCB manufacturer and assembler? That would make sense from a strategic point of view.

    One thing is for sure, Altium know who they want to buy and would have pitched this to the institutional investors. I can’t see anyone giving them money for just “whatever” future use they haven’t thought about yet.

    What do you think?
    And who do you think Altium will or should buy with all this new money?

  • uBeam Ultrasonic Wireless Charging – A Familiar Fish Smell

    Posted on August 7th, 2014 EEVblog 12 comments

    In the last day there has been some buzz about the uBeam wireless energy charging device, which of course, like all great new inventions, does not actually exist yet, it  just needs the magic input of money.

    It ticks all the media story hype boxes though – designed by a female graduate (in Astrobiology, of course), gets $1.7M venture capital funding from no less than Marissa Mayer (Yahoo’s CEO) and is about to get more, and solves all of our first world problems with charging our gadgets – it’s the “WiFi for energy!
    And damn, they have patents pending, 18 of them, it must be a goer!

    Read the rest of this entry »

  • Graphene / Lithium Ion Capacitor Kickstarter BS

    Posted on July 28th, 2014 EEVblog 83 comments


    I’ve had a lot of people ask me to comment on THIS project in Kickstarter.

    It was supposed to be a rechargeable battery based on Lithium Ion Capacitor technology.
    Ok, cool, nothing wrong with that, sounds good. A guy has mated a Lithium Ion Capacitor with a small custom regulator and fitted it into a standard AA size battery holder.
    It even has a nice novel quick charging ring on the outside (could it short out to something though?).

    So it’s all looking quite neat until you read the specs where he claims the capacity is 1150 mAh, and can recharge in a claimed 30 seconds, and that’s when people started to call BS on this idea, and I was one of them.

    I was going to do a video on this, because it’s fairly easy to read the DATASHEET for the cap and calculate the maximum charging rate and capacity of such a system.
    Some people have already done this HERE and HERE.
    Turns out that the capacity is going to be more than an order of magnitude less than the 1150mAh claimed! About 35mAh or thereabouts, about 1/30th of that claimed. And it can’t be charged in 30 seconds, it’ll take at least 60 seconds according to the datasheet max rating. You canna’ change the laws of physics Captain!

     

    So this guy copped a whole host of deserved criticism about the capacity, but rather than provide test data he just said:

    “As far as how long my battery will last, per charge, I can tell you this. I put one in a toy that my 1 year old daughter plays with every day, all day. It’s been in there for a week and it’s still going strong.

    Oh dear. Huge red flag right there. You can’t throw out a capacity figure and not prove it with basic controlled tests.

    But here is the kicker (pun intended), what does he say in response to all this technical criticism? Instead of providing the test data, or admit he simply got it wrong, he SPILLS THE BEANS on what the project is really about…

    It’s a graphene capacitor!

    He’s going to get a manufacturer to use his own home made graphene powder that he supplies them.

    Well, ok, you can make your own graphene, and there is quite a deal of research going into graphene capacitors.

    But he’s now gone from implying that he was using existing Lithium Ion Capacitors and needed the money to mass produce the PCBs, to now saying he needs $8K (80% of total) to pay the manufacturer to make these magical graphene capacitors for him, likely coated in pixie dust (my guess).

    Woah, dude, you can’t do that! You can’t run a Kickstarter campaign claiming (or implying) one thing, and then completely changing the technology and what the risks are.

    Why no mention of the graphene or anything like that in the original Kickstarter? Why no mention of the challenge of getting the capacitor manufactured? Why no mention of what you really wanted the money for?

    And it gets funnier. Rather than provide the data to back up his capacity claim, he doubles down on the toy test:

    If anyone thinks a child’s toy is a poor platform to use to test a batteries endurance, think about it this way. Children’s toys aren’t made to be energy efficient. They drain batteries quickly and the toy manufacturer probably has some sort of an agreement with battery manufacturers saying, “Give us a cut and we’ll make sure people have to buy lots and lots of batteries.” On top of that, it also gives the battery a chance to take the physical abuse of a 1 year old throwing the toy around.

    Wow. No, sorry, that’s not how proper engineering tests are done on battery capacity. At the very least you need a defined load and to drain it to a specified voltage level, and get the resultant capacity graph.
    Ok, a toy test is actually done by battery manufactuers, but it’s not recommended and that is why there are ANSI standards to simulate these things, and good manufacturers follow these in the their datasheets.
    e.g. the standard “toy test” is 3.9ohm for 1hr/day

    But ok, your battery uses a post regulator which will have a flat discharge curve. But at the very least you can do a system discharge of a known current vs time and plot it anyway. Without that, your talk is just that, useless drivel.
    You are the one that came up with a figure of 1150mAh, tell us how you arrived at that figure?
    If you can’t do any of that then you have no business being in the battery business.

    So it is clear he either has no clue how to measure battery capacity, or doesn’t want to, or has done it and won’t release the results. So either clueless, hiding something, or running on wishful thinking.

    Not to mention actually getting a capacitor manufacturer to make custom batteries for you using your own supplied material. I find that very hard to believe, and most likely not for $8K to a guy in his garage. But ok, I’ll assume you can do that.

    This video of the charging and discharge testing is just SO CONVINCING!

    Then he doubles down again with extra arrogance:

    If, for some reason you don’t believe these claims, well, I invite you to pledge enough to get a battery and run it through your own rigorous tests. I’ve had 2 in one of my daughters toys for weeks now without recharging and it’s still going strong. Graphene capacitors haven’t yet reached the market, so, here is your chance to be one of the first.

    No dude, that’s not how it work, unless you are targeting gullible people the burden of proof is on you to show the data that your graphene capacitor has the stated capacity.
    Even more so that this is a custom capacitor using your own magic mix.
    You do actually have sample parts in hand right? Otherwise that should have been mentioned in the Risks & Challenges section.

    At the very least this campaign should be closed for false representation of the risks and what it was about.

    But the 2nd kicker is that even if this magic graphene capacitor can be produced, the best produced yet graphene based Lithium Ion Capacitors at Monash University is 12 times higher volumetric efficiency than the best existing Lithium Ion Supercaps.
    So even if this project used the cutting edge of graphene capacitor research in order to get increased capacity, it’s only going to get to maybe 420mAh at best (35mAh x 12). Still not close to the 1150mAh claimed.
    Not to mention that the graphene supercaps still aren’t production ready yet.
    But hey, a guy on kickstarter recons he can do it in his garage and by throwing $8K at a capacitor manufacturer. Yeah, no worries!

    There is also an Instructable with, well, bugger all info.

    The 3rd kicker, and the final nail in the coffin is the current required to charge the claimed 1150mAh battery. This is easy to calculate.
    1.15Ah * (3600 / 26 seconds) = 159.2A

    Please explain how you are going to charge your battery at 159A?
    This is getting beyond ridiculous. Anyone with any electronics engineering knowledge knows the technical challenges involved in charging anything at 160A, let alone a AA battery.

    Bottom line is this project stinks. It leads people into thinking it’s one thing (off-the-shelf cap) and then pulling a rabbit out the graphene hat when pressed on the details. And then refusing to provide any real world data. But most of all, the numbers simply don’t add up, not even close, it is demonstrably not going to happen.
    The force is not strong with this one.
    He’s too deep down the rabbit hole to admit he got it all horribly wrong.
    Stay clear, this project will not deliver.