Categories

Here you can see all categories at a glance!

 
 

This might also be interesting for you

Martial arts and mathematics

Many basic principles from mathematics, physics and biomechanics can be found in the different martial arts and of course also in karate. This is mostly about power and energy transfer during shocks, kicks and levers or about angle information e.g. when changing direction within a kata or the correct execution of a technique (correct flexion … Continue reading "Martial arts and mathematics"


Ikea Upcycling idea: LED lamp with WiFi remote control

Inspired by some of my last lighting projects for bedrooms and children's rooms, I had some motivation and above all time to tinker on the weekend. As with the Ikea Upcycling lamp for the children's room from the 3D printer, I wanted to turn something old into something new. This time, however, the lamp was … Continue reading "Ikea Upcycling idea: LED lamp with WiFi remote control"


Privacy Browser for more security and privacy

More data protection, security and above all more privacy on the Internet is demanded from all sides, and not only after the entry into force of the EU-wide data protection basic regulation (). In general one can understand this wish, because who would like to voluntarily allow large IT companies to pass on their own … Continue reading "Privacy Browser for more security and privacy"


Training equipment: Makiwara 2.0

A Makiwara is a piece of sports equipment originating from Japan, which in karate is known mainly as a wooden hitting post. In the past (and partly still today) a makiwara is made of a flexible and non-splintering wooden board. One end of the board is driven vertically into the ground, and the other end … Continue reading "Training equipment: Makiwara 2.0"


3D Printing - 27 Inch iMac Stand Repair

As already known for a long time, the stand of the iMacs (27 inch) from 2012 to mid-2014 is often broken. With these models it happens (not all of them) that the hinge is worn out and the screen position can't be changed anymore or, as in my case, the screen constantly tilts forward. 3D … Continue reading "3D Printing - 27 Inch iMac Stand Repair"


This might also be interesting for you

pi_robot - Playing with Raspberry Pi, iPad and some Code

The Raspberry Pi is still one of the most popular mini computers, not only among hobbyists. Cost-effective (about 30 to 40,- EUR depending on the model), flexible in the field of application and at the latest since the equipped with enough CPU power and memory to solve even more complex tasks. With the 1.2 GHz … Continue reading "pi_robot - Playing with Raspberry Pi, iPad and some Code"


Karate: Kicks 2 - Coordination and precision

In the first part (coordination and strength training) of this series, the importance of kicks and the corresponding movement sequences, and how to train the relevant coordinative skills and required muscle groups was already roughly discussed. In this second part about karate and kicks I would like to introduce some simple exercises how to train … Continue reading "Karate: Kicks 2 - Coordination and precision"


Learning to ride a bicycle for children

Riding a bike is fun! Do you remember your first attempts? When you're shaky, but incredibly proud, rolling along the road. In the background one or both parents were cheering, maybe even the siblings? You will enjoy this experience next time as mum or dad. If you are no longer a child, questions arise that … Continue reading "Learning to ride a bicycle for children"


Martial Arts: Stretching

Stretching exercises have become an integral part of almost every sport. Whether in football, yoga, ballet, karate or other martial arts, just about everyone stretches. Stretching not only improves mobility and flexibility, but is also believed to reduce the risk of injury, have a positive influence on muscle regeneration and reduce muscular imbalances. Table of … Continue reading "Martial Arts: Stretching"


Supercompensation - Training is not the same as training

What is supercompensation? Supercompensation is a technical term from training theory, and describes a principle according to which the body after a training load (stimulus-setting) not only tries to restore the old performance level, but also to increase and maintain this performance level. This process takes place in the regeneration phase after a stimulus is … Continue reading "Supercompensation - Training is not the same as training"