Ecology

Immagine

Because Ukraine is retiring from the Ottawa Convention on the ban on anti -human mines

Map showing the countries that have ratified or only signed the Ottawa convention (different shades of blue), the countries that are retreating (orange) and countries that have never joined it (gray). Credit: Odder via Wikimedia Commons With a presidential decree signed by the Ukrainian president Volodymyr Zelenskythe Republic of Ukraine formally decided yesterday 29 June 2025 to abandon the Ottawa ...

guasto radar

What happened during the Radar failure that blocked 320 flights: the technical explanation of ENAV

The airspace of the North -West during the “zero installment”, that is, the suspension of the departure and arrival flights. Credit: Flightradar24 A broken down to radar in Area control center (ACC)of Milan caused cancellations and delays to about 320 flights In the evening between Saturday 28 and Sunday 29 June. The failure to the systems involved several airports of ...

attacco siti nucleari

The attack on a nuclear site does not cause an atomic explosion, but creates the risk of contamination

THE’attack on nuclear sites, as uranium enrichment systems and deposits of fissile material, does not involve the risk of a nuclear detonation, Since the critical geometric configuration and the trigger system necessary to create an explosive chain fission reaction are missing. This point generated some confusion, for example, on the occasion of recent attacks on Iranian nuclear sites by Israel. ...

cellulare caldo temperatura batteria

What are the effects of the heat on smartphones and how to avoid damaging the mobile phone

The high temperatures accelerate reduce performance and significantly shorten the useful life of the internal components of the smartphone. The most common damages concern the battery, the processor and the screen, elements that respond badly to prolonged exposure to heat, in particular if accompanied by intense workloads, such as games or rapid top -ups. Lithium ion batteries, widely widespread in ...

indovinello dei tre amici

The riddle of the three friends at the restaurant: where does the disappeared euro end?

THE’Riddle of the three friends At the restaurant it is based on a very simple account, but in its simplicity it makes everyone crazy, because it seems to appear a missing euro. The situation is this: three friends at the restaurant see a account of € 25and having only banknotes in their pockets 10 € per person to pay the ...