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Optoma UHZ50 Smart 4K UHD Laser Projector

12.11.2021

Optoma has unveiled the new UHZ50 Smart 4K UHD projector for home entertainment and gaming. It supports 4K resolution at 60 fps, as well as 1080p at 240Hz and 4ms response time.

The projector has vertical lens shift, 1,3x zoom and four-corner correction. The native aspect ratio is 16:9, while it supports 4:3 ratio. The diagonal of the projected image is from 34,1 to 302,4 inches. There is 3D support.

The Optoma UHZ50 Smart 4K UHD has two built-in 10W speakers. In addition, Optoma says its projector is rated to operate silently at 26 dB.

The laser projector supports HDR10 and HLG, has a contrast ratio of 2500000:1, a brightness of 3000 ANSI lumens, and a 30000 hour manufacturer's warranty. He received two USB ports for connecting multimedia devices, two HDMI 2.0 ports (including the eARC version), as well as HDCP 2.2 support.

The Optoma UHZ50 Smart 4K UHD projector is priced at $2800.

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The harm from e-cigarettes outweighs the benefits 15.04.2022

Scientists at the Australian National University have published a large review that analyzes the many scientific papers on electronic cigarettes and other vaping devices and their impact on health. Initially, there were about 19 thousand such studies. Then, when those that duplicate each other, those that do not meet the criteria for scientific publications, etc., were eliminated, 189 "e-cigarette" works remained, which, in general, is also not so small.

The report outlines the range of ills that can result from vaping in one form or another, from poisoning and lung damage to addiction. Which is hardly surprising, since from these devices you inhale not just water vapor - you can find up to 243 different substances in nicotine-free e-cigarettes, of which thirty-eight are considered poisons. Although it should be noted here that not all vape liquids contain these substances, and it is unlikely that anyone died after the first puff, that is, dangerous substances are present there in more or less safe concentrations. In addition, the authors of the review write that if there is a link between e-cigarettes and complex chronic diseases, it is not so obvious: that is, it cannot be said that vaping increases the risk of cardiovascular, oncological or endocrine diseases, that it inhibits the development of the brain of children and teenagers, etc.

However, if we talk about the fact that e-cigarettes help to quit smoking regular cigarettes, then everything is not so simple here. Those who have never smoked, or quit long ago, start smoking regular cigarettes if they get carried away with vaping. In fact, e-cigarettes are three times more likely that a person will switch to regular smoking - compared to those who do not use e-cigarettes at all.

There are also reverse examples, when a smoker using electronic cigarettes forgets about regular ones. However, this benefit does not outweigh the disadvantage that was just mentioned - that e-cigarettes increase the likelihood that a person will start smoking. Electronic cigarettes can be used to get rid of tobacco addiction, but this requires an individual approach, and it would be better if e-cigarettes were sold in accordance with medical recommendations, and not just to everyone.

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