It has been argued that infinity-corrected objectives without an auxiliary tube lens cannot produce an image on a camera’s sensor because »they focus on infinity« (whatever that may mean). With the examples shown, this myth has been dispelled.
Talc is a naturally occurring mineral and in its powdered form, it is usually combined with starch (which we also found in many samples) and used as baby powder or in cosmetics. Talc is used for many other purposes such as a food additive, in paper manufacturing or on rubber materials to prevent them from sticking together. […]
The picture is a microphotograph of ambient (street-)dust, collected in Jakarta on August 9th, 2020, after major rainfall which ended a spell of ten dry days. The sample material has been washed down and concentrated by the rain and was collected with a tape lift from a specially prepared surface. So, what’s good about it? […]
Seit dem 10. April ist Jakarta im lock-down, hier PSBB (Pembatasan Sosial Berskala Besar – Soziale Einschränkungen in großem Mass) genannt. Das bedeutet, dass die Schulen und praktisch alle Geschäfte geschlossen sind, mit Ausnahme der Lebensmittelketten, Apotheken, Heimwerkermärkte(!). Wer kann, der arbeitet von zu Hause (wfh: working from home). Auf den Straßen, draußen, sind Gesichtsmasken […]
An alternative view of Jakarta, a black&white photo book with caption in English. Street photography from Jakarta and elsewhere in Indonesia. Published and printed (on demand) in Germany. Available in books shops all over Germany or worldwide (by courier).
The problem with coconut oil is at least two-fold: First, packaged coconut oil consists only of saturated fatty acids, secondly it is processed with hexane (a toxic solvent) and other organic solvents to remove unwanted color and flavor. So the conclusion was that unsaturated fats are “better”. This may be true for the oil in […]
Practically everybody with a brain has understood that we all have to do something to save the environment (and the world), yet we don’t make enough effort. Why? Behaving environmentally responsible is not considered to be “cool”. Trying to get someone to avoid plastic bags is like telling your children to eat up their veggies […]
Central Java was and still is one of the main tourist destinations in Indonesia, next to Bali. Over 200,000 tourists visited Borobudur in 2013. Therefore, it is so sad, so regrettable that things have gone from bad to worse. Here is my report (April 2018): The Dieng Plateau – Central Java In the 1980s, the […]