Mitä opin äskettäin

[Bhven]

Recent studies by the National Institutes of Health reveal that the average American man has about 28 percent body fat, while the average American woman has around 40 percent. In stark contrast, pigs, long stereotyped as symbols of gluttony, now average a mere 16 percent body fat.

https://royalexaminer.com/leaner-than-a ... n-america/

[sivustahuutaja]

Palotarkastuksen voi tehdä täyttämällä omavalvontalomakkeen.

Kompostin tulee tarkastamaan kompostitarkastaja.

Minusta prioriteetit ovat nyt kohdallaan.

[Bhven]

^ Viikinmäen jätevedenpuhdistamon sähkön omavaraisuusaste on jotain 85%, koska onneksi osa porukasta heittää biojätteet vessanpönttöön, sen sijaan, että näpertelisi kompostien kanssa.

[James Potkukelkka]

Kunnallinen kompostintarkastaja työssään

En näe merkintää jyrsijäsuojauksen suorittamisesta

[sivustahuutaja]

Minulta saa ostaa tarkastuksen läpäisevää kompostijätettä kotiin postitettuna. Pelkkää puutarhajätettä sisältävä komposti ei nimittäin läpäise tarkastusta.

[Bluntly]

Jos alkaisi valmistamaan tehokkaita myllyjä, jotka jauhaa puutarhajätteen tunnistamattomaksi kompostoitavaksi massaksi. Vielä kun lisää kahvinpurut niin siinä on.

[sivustahuutaja]

^
Homogeeninen massa ei kompostoidu kunnolla, eikä näin ollen läpäise Tarkastusta.

[Bluntly]

Siksi kahvi.


Ja päivän oppi:

2003 Angola Boeing 727 disappearance

[James Potkukelkka]

^



Despite being only 13 percent of the population..

[James Potkukelkka]

Voitonpäivää juhlitaan Euroopassa vs Venäjällä eri päivänä sen takia, että sotatoimet päättyivät klo 24 CET.

[Bhven]

Lentokoneiden sähkötekniikka toimii 400 Hz taajuudella.


Why did the Vulcan bomber have 400 Hz electrical system?

The Vulcan bomber, a British jet-powered strategic bomber, used a 400 Hz electrical system primarily because of the advantages offered by higher-frequency alternating current (AC) systems in aircraft design. Here’s why:Weight Reduction: A 400 Hz system allows for smaller, lighter transformers, generators, and other electrical components compared to lower-frequency systems like 60 Hz (common in household systems). Higher frequencies reduce the size of magnetic cores in transformers and motors, which is critical in aircraft where weight savings directly impact performance and fuel efficiency.

Efficiency in Power Distribution: The 400 Hz frequency enables more efficient power transmission over the aircraft’s electrical system. It reduces the size and weight of wiring and associated components, as higher frequencies require less current to deliver the same amount of power, minimizing resistive losses.

Compact Equipment: Aircraft systems, including avionics, radar, and weapon systems, benefit from the compact size of 400 Hz components. This was especially important for the Vulcan, which needed to balance complex electronics with the structural and weight constraints of a high-performance bomber.

Standardization in Aviation: By the time the Vulcan (first flown in 1952) was developed, 400 Hz had become a standard frequency in military and aerospace applications. This standardization ensured compatibility with existing equipment, simplified maintenance, and allowed for reliable integration of systems from various manufacturers.

Improved Motor Performance: Many aircraft systems, such as actuators and pumps, use AC motors. At 400 Hz, these motors can operate at higher speeds with better power-to-weight ratios, which was advantageous for the Vulcan’s demanding operational requirements.

The choice of 400 Hz was a practical engineering decision, balancing the needs for lightweight, efficient, and reliable electrical systems in a high-performance military aircraft like the Avro Vulcan. This frequency remains a standard in modern aviation for similar reasons.