Search results
Results from the WOW.Com Content Network
Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...
The Mitsubishi model was the first air conditioner with a cross-flow fan. [64] [65] [66] In 1969, the first mini-split air conditioner was sold in the US. [67] Multi-zone ductless systems were invented by Daikin in 1973, and variable refrigerant flow systems (which can be thought of as larger multi-split systems) were also invented by Daikin in ...
Just as horsepower and candlepower were intuitive units of measure for people living through the transition from horse to steam power [3] and from flame-based to electric lighting, so was the ton of refrigeration an intuitive unit of measure during a technological change, as the ice trade gradually included growing percentages of artificial ice ...
The Seven Network (stylised 7Network, commonly known as Channel Seven or simply Seven) is a major Australian commercial free-to-air television network.It is owned by Seven West Media Limited, [2] and is one of the five main free-to-air television networks in Australia.
The classic Metallica logo, designed by James Hetfield and used on most of the band's releases. [7] [8]Metallica was formed in Los Angeles in late 1981 when Danish drummer Lars Ulrich placed an advertisement in a Los Angeles newspaper, The Recycler, which read, "Drummer looking for other metal musicians to jam with Tygers of Pan Tang, Diamond Head and Iron Maiden."
Instead of using a 'nominal mix' of 1 part cement, 2 parts sand, and 4 parts aggregate, a civil engineer will custom-design a concrete mix to exactly meet the requirements of the site and conditions, setting material ratios and often designing an admixture package to fine-tune the properties or increase the performance envelope of the mix.
The European Development Fund (EDF, €22.7 billion for the period 2008–2013 and €30.5 billion for the period 2014–2020) is made up of voluntary contributions by member states, but there is pressure to merge the EDF into the budget-financed instruments to encourage increased contributions to match the 0.7 per cent target and allow the ...
[9] [8] By the end of 2019 the stock of light-duty plug-in vehicles totaled about 7.5 million units. [39] Worldwide sales in 2019 rose to 2,209,831 units with a global market share of 2.5%. [ 9 ] The combined number of PEV and hybrid cars sold in the European Union hit a record in July 2020, accounting for 18% of the total number of passenger ...