Contents this week: this anti-heat wave trick that can double the performance of the fan, the consequences of motorways limited to 120 km/h on electric cars, news on the hacking of La Poste Mobile, and the latest innovation in the extraction, storage and transport of hydrogen: powdered hydrogen.
This heat wave trick can make your fan more efficient
While for many the fan is the only bulwark against the heat wave that is currently hitting the country, we offer you a tip that can, under certain conditions, double the cooling effect of the device. In the evening, when the temperature outside is lower than that inside, direct it towards the outside: this will help the cold air to replace the warm air trapped in your home more quickly.
Will highways limited to 120 km/h benefit electric cars?
In its latest energy sobriety plan, the government explores new options to reduce greenhouse gas emissions. One of the proposals is thus to lower the limit from 130 km/h on the motorway to 120 km/h as in many neighboring countries such as Spain or Belgium. In addition to emission reductions, the measure could have another immediate effect: to optimize the autonomy of electric cars, which consume an incredibly less amount of energy when they drive 10km/h less quickly.
La Poste Mobile hack: when will the nightmare end?
The La Poste Mobile website has only partially come back online in recent days – the home page is still topped with the message “Our website is currently unavailable, but you can find all our offers in your post office and with our telephone advisers” – followed by a list of the operator’s offers, without it being yet possible to subscribe or manage your package online. La Poste Mobile had to close its website following the visibly devastating consequences of a ransomware attack around July 8, 2022.
Why Powdered Hydrogen Can Change Everything
Hydrogen storage is one of the many problems that still hamper the chances of this energy to establish itself as an alternative to Li-Ion batteries in electric cars. It must be said that we are talking about the smallest atom in MendeleĂŻev’s table – and the gas therefore ends up diffusing into the material that tries to contain it. To make matters worse, it “barks at the flame” in the presence of oxygen, which makes hydrogen very dangerous. And we’re not even talking about the problems that arise on the production or extraction side… However, Australian researchers seem to have found something by chance that could revolutionize the industry: a cheap method that transforms hydrogen into a very safe and stable powder.
That’s all for today. Find next week a new Lemon-pressed to stay connected to the news that should not be missed!
