In this post, I'll try to explain how simple rules for electric and magnetic fields demonstrate that all velocities must be less than the speed of light. It can be done by imagining the consequences of a simple experiment, where a charged particle is watched by two different observers.

The problem with this alluring image is not just that it is false. The myth of Nazi occultism is more than an amusing curiosity, a testament to the power of cinematic suggestion. It actively detracts from a historical understanding of the very themes it highlights. It yields a distorted view of Nazism and a distorted view of occultism. But it also offers an occasion for critical reflection, a chance to see how we might make better sense of the tangled history of occultism in the Nazi era. It might even help us to understand Nazi evil and the not-so-hidden forces behind it.

"There are some tragic cases of children whose brains failed to develop because of their parents being ill-informed vegans," says David Benton, who studies the link between our diets and brain chemistry at Swansea University. In one example, the child was unable to sit or smile. In another, they slipped into a coma.

Later in life, the amount of B12 in a person's blood has been directly correlated with their IQ. In the elderly, one study found that the brains of those with lower B12 were six times more likely to be shrinking.

Even so, low B12 is widespread in vegans. One British study found that half of the vegans in their sample were deficient. In some parts of India, the problem is endemic — possibly as a consequence of the popularity of meat-free diets.

Typesense is an open source, typo tolerant search engine that is optimized for instant sub-50ms searches, while providing an intuitive developer experience.

With COVID-19, vaccines still fulfill their primary role: protecting against severe disease. According to the US Centers for Disease Control and Prevention, vaccinated people who catch the Delta variant are 25 times less likely to have a severe case or die. The overwhelming majority who do catch it will have mild or no symptoms.

But growing evidence suggests that, with the Delta variant, fully vaccinated people can still transmit the virus.

Most countries have land borders and voters. For them isolation was never feasible. Instead, they have adopted a confusing, illogical mess of rules. America bars travellers from Britain and the European Union, its closest allies and trade partners, and also two of the most vaccinated big places in the world, while admitting those from South-East Asia, where the Delta variant is rampant. Thailand bans entry from some countries and requires all other travellers to submit to a two-week quarantine. Yet of 21,038 cases identified on August 10th, only 19 were imported. Once a variant of the virus has started to spread in the local population, infections double every couple of weeks. Entry bans make very little difference to the total caseload.

This is a list of (Fuzzy) Data Matching software. The software in this list is open source and/or freely available.

The term data matching is used to indicate the procedure of bringing together information from two or more records that are believed to belong to the same entity. Data matching has two applications: (1) to match data across multiple datasets (linkage) and (2) to match data within a dataset (deduplication). See the Wikipedia page about data matching for more information.

Similar terms: record linkage, data matching, deduplication, fuzzy matching, entity resolution

The government's approach to technological surveillance is leading us down a dark path, experts warn, as it prepares to give law enforcement agencies new hacking powers.

Currently before parliament's Intelligence and Security Committee, the Surveillance Legislation Amendment (Identify and Disrupt) Bill 2020 is the government's latest attempt to gain a watchful eye over cyber space.

Once the bill passes, it will dish out extra power to the Australian Federal Police (AFP) and the Australian Criminal Intelligence Commission (ACIC), giving the agencies access to new warrants that will let them modify and delete data, collect intelligence from online communities, and even take over the online accounts of supposed criminals.

I love spreadsheets. Spreadsheet programs like Microsoft's Excel, Apple's Numbers and Google Sheets are the secret heroes of our civilization.

I've also been interested in personal finance and the FIRE community for a while—not so much in the early retirement aspect but in the financial literacy it teaches its members. I have combined my passion for both into one mega-spreadsheet that I use to track my income, expenses, savings and investments in one overview. While creating this spreadsheet I got proficient in some new formulas, which I'll share here—and also write down for my own reference.

In Boston they just did a poll where they asked "even though it means less space on the streets for cars, do you want to keep the parklets we've put in during COVID?" Eighty-one percent said keep the parklets. They asked about keeping the bike lanes and 79 percent said keep the bike lanes. This is a randomized poll, they're not stopping cyclists on the street. That's where public opinion is, but that's not necessarily what the leaders are hearing whenever the question comes up about keeping or eliminating an individual parklet or bike lane.

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