TFD Blog and pages.
There are a lot of posts about Volvo Penta raw water pumps failing, causing engines to overheat, in forums. Seems to me far more than any other engine. I have a Volvo Penta D2-40, now about 9 years old, in perfect condition. Serviced regularly an inspected frequently. By myself, its my boat and if its not done right I suffer the consequences. Service mechanics don’t as I found out on the first…
Looks a lot like Google has started to enforce (https://blog.google/products/gmail/gmail-security-authentication-spam-protection/) This is a graph of forwarded vs rejected email for a small domain I use CLoudFlare to forward to gmail accounts. Normally rejection rates are very low. Last week they started to rise.
To simulate a real behavior requires some level of randomness or noise in the signal. In my case I want to simulate the behaviour of a helm at sea. They try to steer in to a bearing but environmental factors ensure that they wont accurately. Waves, wind, distractions, lack of sleep all play a factor. To simulate this randomness is not enough. A random number between 0 and 1.0 is completely random…
This blog has been moved from Wordpress to Github pages, source at https://github.com/ieb/ieb.github.io. If you have comments or want to correct something please open a PR and I will consider it.
Let me be clear, I am not associated or working on any tracing app. I am a user. Let’s also be clear. Covid-19 is a frightening virus which has a horrible impact on some. 30% of patients dont make it out of ICU. The impact on some ethnic minorities is disproportionate. If you have a BMI over 30 your 37% more likely not to survie.
Contact tracing is a n squared or more computationally intensive operation when done centrally. It is impossible to do at scale manually, with each operation taking days. For governments to perform it centrally requires citizens give up their rights to privacy, especially when a contract tracing app is being used. And yet, it seems, most central contract tracing apps appear to want to gather all…
Fouling for any boat, large or small eats boatspeed, fuel and satisfaction. Most boats haul out every year, pressure wash off or scrape off the marine flora and fauna that have taken up residence. Owners then repaint the hull with a toxic antifouling paint. Toxic to marine life, and unpleasant to human. In small boats the toxicity has been greatly reduced over the years, some would argue so has…
I sail, as many of those who have met me know. I have had the same boat for the past 25 years and I am in the process of changing it. Seeing Isador eventually sold will be a sad day as she predates even my wife. The site of our first date. My kids have grown up on her, strapped into car seats when babies, laughing at their parents soaked and at times terrified (parents that is, not the kids). see…
If you ask the for the solution to the multi faceted question with a binary question you will get the wrong answer with a probability of 50%. Like a quantum bit, the general population can be in any state based on the last input or observation, and so a Referendum, like the EU Referendum just held in the UK should only ever be advisory. In that Referendum there were several themes. Immigration,…
Limited experience in either of these fields does not stop thought or research. At the risk of being corrected, from which I will learn, I’ll share those thoughts.