Leopold and Rudolf Blaschka and their Marine Life glass collection

ivda marina collection by the Blaschka
Image Guido Mocafico

Leopold and his son Rudolf Blaschka created zoological models made in the XNUMXth century for scientific use, made from Bohemian glass.

It is one of those objects that could be in any cabinet of curiosities and that I would love to have.

They made 2 collections: Marine Life on marine invertebrate animals and a "herbarium" with plant species for Harvard University.


roman aqueducts

Roman aqueducts and their construction

In this article you will find a lot of information about the Roman aqueducts, how they were built, how the source of origin was chosen, how the route was chosen, etc, etc. These are notes taken from the two chapters on aqueducts of the Roman Engineering series and other sources that I leave at the end.

When many people talk about aqueducts, they think of arches, like those of the Segovia aqueduct, but that is only part of it. The aqueduct is all the channeling from the spring or source of origin to the destination city, and on this journey the water is conducted through different channels, from buried lead pipes, tongue-and-groove rock pipes, channels, rock tunnels, from inverted siphons, decanters, distributors to the arches, everything is part of a great work of hydraulic engineering.

Key elements

The Romans were always looking for sources of great quality and flow. They never supplied water from rivers or swamps to the cities, but from the best springs, bringing water from wherever it was needed.


How to configure TP-Link Router and DIGI card

tp-link mr600 router with Digi card

For a few years I have needed WIFI in an area with little coverage, where no cable, no fiber, or anything else reaches. The companies in the area with WiMax technology do not cover it either, so I have been with an Orange 4G router for several years. I didn't get much bandwidth, only 3 -5 Mb but that worked for me. This year it did not exceed 200Kb so I had to look for options.

After trying several acquaintance cards. The company that works best for me is DIGI and to use its 4G coverage I have compared a 4g router, The Tp-link Archer MR600 and the results after a small configuration have been very good, achieving 15 to 20Mb of download.


How to create alerts in Wallapop

This is a simple trick, really a nice setup, of our Wallapop app to notify us when a new product appears that we are looking for. In this way we will not have to always be entering and looking for what is new.

Just We create the alerts we need and it will send us notifications.fications when they post a new product that meets the characteristics we have chosen in the filters.

A clear example is looking for a Nintendo Switch. We can make Wallapop notify us with a notification when someone sells a Nintendo Switch, up to a certain price, with a distance filter, etc.


El Carmen de Onda Natural Science Museum

On August 3 we visited the Museo del Carmen de Onda. A natural science museum that is sure to arouse the interest of the youngest members of the family. It is ideal to make a visit that will last about 2 hours and that costs € 5 per person or to organize school excursions.

If you are in the area you can visit the museum and the Caves of San José of the Vall d'Uixó.


Visit to the caves of San José and the Iberian town

On August 14 we made this visit with the girls. Although the best known destination are lAs Cuevas de San José with its underground river, 200m up the mountain you have the site of the Iberian-Roman town, which is an Asset of Cultural Interest. So it is ideal to do the joint visit. Of course, for the town I recommend going with a guide if you want to find out something.

It is spectacular to go with or without children and ideal to go with them, they are left with their mouths open throughout the 40-minute journey and then it allows us to explain many things to them.

In the caves they do not allow taking photos, except at a certain point and we do them without flash. So I only leave 2 photos of me and the rest I have taken from the official website.


Home heat, climate and air conditioning

Climate, heat and domestic air conditioners

This post was born as a result of the article Too hot to live published in National Geographic of July 2021 and written by Elizabeth Royte, where you can see the problems that excess heat causes in humans and their bodies, the problem of increasing temperatures on Earth and air conditioning technology and how to improve it.

There is a serious problem. To combat high temperatures and their effects we need refrigeration. But it consumes a huge amount of electricity and more and more people, especially in poor areas, will need it.

As it looks in the problem section, the data is monstrous. There are already initiatives to find new ways to cool and improve the efficiency of available appliances. If you are looking for a new project to dedicate yourself to, this one could help a lot of people.

A similar subject dealt with at Ikkaro was the construction of a fridge that works without electricity.


The great lakes of North America

lake superior, of the great lakes of north america

This article are notes taken on the Great Lakes of North America, a colossal landform that has fascinated me. The notes are taken from an article by and from the National Geographic documentary, I leave the bibliography at the end.

I hope you enjoy and find useful all the dates that I leave. Now when I read about the native Indians that inhabited this area I will be able to understand its immensity.

Novels and essays that we talked about on the blog and are set in Native North American Comanche and Crazy Horse and Custer


New themes and new direction of the web

New direction and new themes for the web

Now yes. It is the biggest change in Ikkaro in 12 years. And look, I've done things on the web and on the web. After much thought I have decided to turn Ikkaro into a more personal website. Until now everything I published passed a filter. Everything was closely related. Now some things are going to appear that can deviate from the usual course. But I know that as important as the chosen topic is the approach, the way of presenting it and the consistency with the rest of the web.

I want the web not to be an end but to use it as a means, as a tool. I want to stop posting just finished things to start using it to gather information on things to do. Of ideas that arise, of tests that fail.

Why am I not going to tell an experience or a talk that I have had with someone if I have extracted interesting things? From the moment I make Ikkaro my only personal website, the whole context changes. I will win in fun.

In the end, we are everything we do, everything that happens to us and interests us and it is good to reflect it here. I have already unified some websites and themes that I had dispersed and that are already integrated in Ikkaro.