Category Archives: Useful

Ein Kilogramm ist ein Kilogramm

Physikalisch-Technische Bundesanstalt: Alle Macht den Konstanten.

“Wenn Sie jemandem begegnen, der fehlerfrei und ohne Spickzettel sagen kann, was ein Kilogramm ist, dann seien Sie auf der Hut. Es muss sich um einen speziellen Wissenschaftler, einen Metrologen, handeln, der noch ganz begeistert ist von dem fundamentalen Wandel im Internationalen System der Einheiten (SI). Denn ab dem 20. Mai 2019, dem Weltmetrologietag des Jahres, sind so abstrakte Dinge wie Naturkonstanten dafür verantwortlich, was unter einem Kilogramm und einem Ampere, einem Kelvin und einem Mol zu verstehen ist. Nach jahrelanger Forschung in den großen Metrologieinstituten und im Besonderen in der Physikalisch-Technischen Bundesanstalt (PTB) hatte sich die Weltgemeinschaft auf diese Revision des Einheitensystems verständigt – eine Revision, die mit dem Weltmetrologietag 2019 in Kraft tritt.”

NPR: Scientists Introduce New Kilogram On World Metrology Day. “After 130 years, the kilogram has been redefined. The new standard is based on the fundamental laws of physics and is much more accurate.”

Tables, tables, tables

Tables Generator lets you create tables for LaTeX or HTML documents

“Entering tables in LaTeX documents can be burdensome because of the necessary formatting directives. For this purpose we created this online generator which (hopefully) will allow you to generate LaTeX code you can just copy & paste into your document’s source. Our editor is close to WYSIWYG (What You See Is What You Got) principle, i.e. the table displayed in the editor should resemble the final table.
Creating tables in HTML seems to be somewhat easier than in LaTeX, the syntax is simpler but more verbose. There are countless tools available which allow you to create tables in HTML format, nevertheless if you just need a quick and simple tool you may use the generator on our site. It supports features like cells merging, text align and some simple styling.”

I found this site the other day while trying to typset a table for a math test in LaTeX in which I needed merged cells across several rows and columns. Worked like a charm!

“The legislation is four to five times more complicated than existing law”

The Economist: The joys of data hygieneEurope’s tough new data-protection law. “Complying will be hard for businesses, but it will bring benefits too.”

“The new law was mostly written by privacy-conscious Germans. Consent to collect and process personal data now has to be “unambiguous” and for “specific” purposes, meaning that catch-all clauses hidden in seldom-read terms and conditions, such as “your data will be used to improve our services”, will no longer be sufficient. “Data subjects” can demand a copy of the data held on them (“data portability”), ask for information to be corrected (“right to rectification”), and also request it to be deleted (“right to be forgotten”).

The GDPR is prescriptive about what organisations have to do to comply. They have to appoint a “data-protection officer” (DPO), an ombudsman who reports directly to top management and cannot be penalised for doing his job. They also have to draw up detailed “data-protection impact assessments”, describing how personal data are processed. And they have to put well-defined processes in place to govern the protection of personal data and to notify authorities within 72 hours if there is a breach. Companies that persistently ignore these rules face stiff fines of up to €20m ($25m) or 4% of global annual sales, whichever is greater.

As a result the GDPR ensures that all organisations which collect and keep data will take their use (and abuse) much more seriously”

The GDPR will have effects on my weblog as well. See

GDPR Compliance Tools in WordPress.

“GDPR compliance is an important consideration for all WordPress websites. The GDPR Compliance team is looking for help to test the privacy tools that are currently being developed in core.
What is GDPR?

GDPR stands for General Data Protection Regulation and is intended to strengthen and unify data protection for all individuals within the European Union. Its primary aim is to give control back to the EU residents over their personal data.

Why the urgency? Although the GDPR was introduced two years ago, it becomes enforceable starting May 25, 2018.”

(Nicht wirklich) Neues von der Datenkrake

Spiegel online: WhatsApp-Nutzern könnten Abmahnungen drohen. “Wer WhatsApp nutzt, stimmt der Weitergabe seines Adressbuches an das Unternehmen zu. Diese Praxis sei illegal, urteilt das Amtsgericht Bad Hersfeld im Fall eines Elfjährigen. Für Nutzer könnte das Folgen haben.”

“Wer über WhatsApp die Telefonnummern seiner Kontakte automatisch an das Unternehmen weiterleitet, ohne die Betroffenen vorher um Erlaubnis zu fragen, begeht eine Rechtsverletzung. Das entschied das Amtsgericht Bad Hersfeld in einem Sorgerechtsstreit (Az. F 120/17 EASO), in dem es auch um die Smartphone-Nutzung eines elf Jahre alten Jungen ging.”

(Siehe auch 31. August 2016, 9. September 2016, 27. September 2016.)