October 27 2016, 18:58

Interesting facts about the venerable stealth F-117. It turns out that it has such a faceted shape because, at the time of its invention, they couldnโ€™t calculate an effective scattering surface for more complicated shapes. Due to this, it has no aerodynamics to speak ofโ€”so much so that it’s completely unmanageable manually. Essentially, it’s a rocket with wings, controlled by a computer, since its flight must be constantly adjusted. It’s covered with “iron ball paint” โ€” microspheres of carbonyl iron or ferrite. The coating is capable of absorbing radio waves in a certain range of radar frequencies. When exposed to radio waves, the ferrite molecules within the coating come into oscillatory motion under the influence of an alternating magnetic field, transforming the energy from high-frequency radiation into heat. This heat is transferred to the aircraft’s structure and dissipates. That’s why it’s invisible on radars. Moreover, this is so crucial that after each flight the aircraft was inspected for any scratches or chips. The cost of flying the aircraft is $135,000 per hour, and the aircraft itself costs two and a half billion dollars. The tail is covered with small pyramids that repeatedly reflect the radar signal to either fade it out more quickly or deflect it sideways.

October 26 2016, 23:15

Today’s article is about new types and beans in hybris 6.2. Those who do not know what these last three words mean, will hardly understand the article. For those who know – the article might help assess the migration to a new version or find interesting topics for further detailed study. There will be separate posts on some of these topics.

https://hybrismart.com/2016/10/26/hybris-6-2-new-modified-

October 25 2016, 21:41

To those knowledgeable in English grammar – why is the active voice used in the expression people don’t change, while my address was changed employs the passive voice? I am particularly interested in how many verbs can be used in the same way as change in people don’t change? It sounds odd to me, although it is absolutely correct.

UPDATE: Figured it out. Turns out, according to the dictionary, “to change” also means to become different, not just to make different as I previously thought