Showing posts with label Should. Show all posts
Showing posts with label Should. Show all posts

Thursday, 27 October 2011

When Should You Not Use a Energy-Saving CFL Bulb? [Energy Savings]

By Jason Chen Oct 17, 2011 11:00 AM 37,410 117

When Should You Not Use a Energy-Saving CFL Bulb?A major part of how I cut my electric bill by a third* was swapping out old incandescent light bulbs to CFLs, which use less energy and last longer. On paper, the CFLs are better in every way, but apparently, Unpluggd says there are some times when you shouldn't use them.

Apparently, a major concern for CFLs is temperature. The ambient temperature shouldn't exceed 122ºF, which shouldn't be a concern usually, except some lamp enclosures and fixtures don't have adequate ventilation.

When Should You Not Use a Energy-Saving CFL Bulb?This image gives you a quick overview of what you should look out for when you swap over your bulbs. For ceiling fixtures, you need a small gap between the mount and the glass. For lamps, look for vents near the base of the mount, and avoid anything that totally encloses the bulb.

In truth though, higher temperatures aren't going to break your CFLs immediately—they're just going to last less long than they would in optimal conditions. Even if you only get, say, 4 years instead of 8, the energy savings will be worth it when you compare them to incandescents.

* Actually, after a few more months, the bill seems to be cut down not just a third, but nearly a half.

When You Shouldn't Use CFL Bulbs | Unpluggd

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Should I Switch to iCloud From Google? [Lifehacker Showdown]

By Whitson Gordon Oct 17, 2011 12:00 PM 44,724 62

Should I Switch to iCloud From Google?Among the big enhancements to iOS 5 is Apple's new iCloud suite, which keeps your mail, contacts, calendars, documents, and other data stored in the cloud and synced to all your Apple devices. Most people currently use Google services for these features, so we played with iCloud for a few days and looked at how they stacked up against one another. Here's what we found.

Both suites are actually pretty good. It's no secret we love Gmail, Google Calendar, Google Docs, and other Google service around here, but if you're an Apple user, iCloud is pretty tempting. Each individual service has its own strengths and weaknesses. Here are the big services in each service and how they stack up against one another.

Should I Switch to iCloud From Google?One of the biggest differences between both suites is the amount of storage you get. iCloud gives you 5GB for free, for all iCloud services—that means if you fill up that space with documents, you could stop receiving email, and if you get email with huge attachments, you might run out of space for documents or photos. Google, on the other hand, gives you lots more space for free, and splits it up by service: Gmail gets a little over 7GB for free, Google Docs gives you 1GB for uploaded files (but mostly unlimited space for web-created documents), and 1GB of space for high-res photos in Picasa.

You can grab extra storage for iCloud and Google, though Google's prices are significantly better. $20 a year will get you 10GB extra space with iCloud, but it'll get you 80GB of extra space on Google. Check out Google's pricing page and Apple's pricing page for more info.

Should I Switch to iCloud From Google?Mail's web interface is surprisingly iOS-like, even moreso than Lion's version of Mail. You have three panes, like a traditional mail client, but it has large buttons and only a few options. In fact, it looks nearly identical to the screens you'd get on the iOS version of Mail. Luckily, the buttons along the top include both Archive and Delete, something you don't get with Gmail on iOS. Frustratingly, Gmail only allows you to archive or delete messages, but it doesn't give you the option to put both buttons in your toolbar. iCloud handles this like a champ, making productive email management a lot easier and faster.

Of course, it isn't without downsides. The web version of Mail is extremely basic, and even assuming you use Mail.app in OS X to manage your email, you'll miss out on a lot of the advanced features Gmail has to offer. Whether it's the increased organizational powers of labels over folers, super-powerful search operators, the ability to "send as" another email address, or even even the many Gmail labs like Send & Archive, Apple's iteration of email is a bit less feature rich. Gmail's spam filtering is also a big feature that you probably use, but don't even notice—and iCloud won't have that. If you were using Mail.app to manage your email anyway, you probably won't miss most of Gmail's advanced features. Just know they won't be available to you, even on the web, if you use iCloud.

Should I Switch to iCloud From Google?The two calendar apps are much more similar. Both allow you to create multiple calendars, color-code them, and attach reminders. iCloud misses out on a few of the smaller features—like assigning an event as "busy" or "free" time, but overall all the basics are the same. The big difference is in shared calendars: In iCloud, you can only collaborate on a calendar with other iCloud users. Google Calendar users can only collaborate with Google users, too, but it's likely that you know more people using Google Calendar than iCloud, so this is a disadvantage for iCloud. You can still add shared Google calendars to iCal. Also note that you can still share iCloud calendars with Google users, but they'll be read-only, so you'll still be the only one able to edit them.

Should I Switch to iCloud From Google?There isn't a huge difference between the two contacts apps. iCloud's address book looks almost exactly like OS X Lion's version of Address Book, only in a larger window. If you really dig down into Address Book, you may notice that Google's contact system—since it runs on Exchange—can't sync certain fields. For example, it only supports "Manager", "Spouse", and "Supervisor" in the relationship field, which can make things like Siri a bit less useful. It's minor, but it is a downside.

The biggest problem between the two is that iCloud requires—for unknown reasons—that you only sync with iCloud. That means you can't sync your Google contacts and iCloud contacts with your Mac's address book simultaneously, which can be very annoying if you want to use both. However, few people really need this feature, and like I said, iCloud's address book is potentially more powerful anyway, so it shouldn't be a huge burden.

Should I Switch to iCloud From Google?iCloud's competitor to Google Docs is "Documents in the Cloud", a service that keeps your Pages, Keynote, and Numbers documents in sync between all your iOS devices and the web. However, instead of being a web-based suite of apps, it's merely storage space from which you can download and upload documents. Anything you create in Pages, Numbers, or Keynote on iOS can automatically be saved in the cloud, and your other iOS devices will always have the most up-to-date version of that document. If you want to edit it on your computer, you can go to the iCloud web interface and download any of those documents for editing with your favorite desktop office program.

This may sound like a downside, but it makes the process easy enough that it really isn't a problem—and, in the end, your desktop office suite is probably much more full-featured than something like Google Docs would be. iCloud's interface for storing your documents is very nice, and you can download a document with the click of a button. When you're done editing it in Pages, Word, LibreOffice, or whatever else you choose, you can just drag it back into the web interface and it will replace the older file. It's incredibly simple, yet gives you the flexibility to easily use whatever office suite you want. It's only downside is that it requires you buy iWork for iOS, which is $10 for each app—even if you only want to sync those documents between your computers. Though really, if you're just syncing between computers, we recommend you just use something like Dropbox anyways.

The big advantage of Google Docs is the ability to edit documents right in the web interface, and collaborate on them with other people. You don't get any of those great collaboration features in iCloud, and you can't upload files of any type to iCloud like you can with Google Docs. Like the other services, it all depends on what's important to you. If you need the collaborative features of Google Docs, iCloud won't be able to replace it, but as far as cloud document storage and syncing goes, iCloud does a fine job.

Should I Switch to iCloud From Google?Photos and music work a bit differently in iCloud than other services, so it's hard to compare the two. Your photos and music aren't actually stored in the cloud, for you to view from anywhere—iCloud just makes them available to all your iOS devices. Any photos you take on your device will automatically show up in your computer's photo library, and vice-versa. But, you won't be able to view or share them on the web. Similarly, iTunes in the Cloud will automatically send new purchased music to all of your devices. It'll also come with iTunes Match, which will make most of your computer's library available for download on all your devices for $24.99 a year. Again, though, you won't be able to access that music from the web or stream it—you can only download it to your other iOS devices. Thus, if you rely on Picasa or Google Music to make that media available to you everywhere, you probably don't want to give it up for iCloud just yet. If you don't use them, though, iCloud can make syncing your devices a lot easier.

After using iCloud for awhile, our conclusion is pretty much what we expected: Google's services definitely win in terms of features, but when it comes to integration with your Mac and iOS devices, iCloud obviously has an edge. In the end, it's pretty easy to determine whether you should switch: If you use your Google services on the desktop, with programs like Mail, iCal, and iWork, then you should definitely switch. Everything will work a bit better than you're used to (especially email), and you probably won't miss anything from Google's services, since you can't access those extra features in desktop programs anyway. If you use Gmail, Google Calendar, Google Docs, and others on the web, thn moving to iCloud could feel like a big downgrade. Sure, you have better integration, but the change in feature set is much greater, and if you use any of Google's more advanced features, you'll really miss them. Of course, it's all about what's most important to you—iCloud's one-click setup is really awesome—so you'll have to decide for yourself.

Have you given iCloud a shot? Let us know what you think—and whether it's convincing you to switch away from Google—in the comments. And, if you're ready to make the jump, be sure to check back tomorrow for our full how-to on migrating all your mail, contacts, calendars, and other data from Google to iCloud.

You can contact Whitson Gordon, the author of this post, at whitson@lifehacker.com. You can also find him on Twitter, Facebook, and lurking around our #tips page.
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Saturday, 15 October 2011

Should I Use Premium Gas in My Car? [Ask Lifehacker]

Should I Use Premium Gas in My Car?Dear Lifehacker,
My car recommends that I use premium gasoline, but I'm curious as to how much I'd actually benefit—I've heard some people say it doesn't actually matter. Is it really worth the cost, or are they just recommending premium to get me to spend more?

Sincerely,
Confounded by Cars

Photo by Images of Money.

Dear Confounded,

I don't blame you for your confusion, what with all the gasoline-based advertising and vague "recommendations" out there. You may, in fact, be well able to ditch premium gas; unfortunately, the answer is a bit more complicated than a simple yes or no. So, we'll start by explaining how your engine works—without getting too technical—and what kind of gas is right for your particular vehicle.

Premium gas, which usually has an octane level of 92 or 93 (compared with regular's octane level of 87), is designed to prevent knock on cars with high compression ratios. The compression ratio is the total volume inside the cylinder that is displaced when the piston moves. If you use low-octane gas on a car with a high compression ratio, it's more likely that the gas will ignite prematurely, causing your engine to knock and rattle (if you want a more in-depth view of how a car engine works, check out HowStuffWorks' article on the subject). A mild knocking isn't necessarily harmful to your car, but it certainly isn't something you want—and heavy knock could damage your engine.

Should I Use Premium Gas in My Car?That said, the majority of cars are designed with a lower compression ratio, so that low octane gas is more than adequate to power the engine without producing knock. In fact, few cars actually require premium gasoline these days—usually it's just the luxury cars that do (though some luxury cars—like the Cadillac STS, for example—don't). The best way to find out what your car requires is to—surprise—look in the owner's manual!

If your car requires premium gas: Then you need premium gas. Your car has a high compression ratio and, moving to a lower grade will likely cause knocking, which you really don't want.

If your car recommends premium gas: This is trickier. Years ago, says Edmunds.com, it more of an all-or-nothing deal, but many cars today have internal knock sensors that change the game. Now, many cars can adjust the engine's timing to prevent knock, thus allowing you to use lower octane gasoline if you so choose. If your car merely recommends premium gas, you can safely switch to a lower octane without risking engine damage. You will notice a small drop in performance—as in, it'll take you a half a second longer to accelerate from 0 to 60—but since I'm not trying out for Fast and the Furious XCVIII, I've never bothered. Some argue that this level of precision could make it easier to merge on the freeway or avoid an accident, though, so it's up to you to decide whether the extra money is worth the extra half second. Some say it can also improve your mileage, but again: you'll have to measure your mileage before and after against the increased cost to see if it makes a cost effective difference. Our brother site Jalopnik makes a good point, though—in a lot of places, premium gas is still pretty affordable when compared to the low-octane alternative.

If your car does not recommend premium gas: Then you don't need it. In fact, if your car doesn't say anything about premium gas usage, all you'll be doing is dumping more money into your car. Premium gas will do nothing to increase the performance of a car that wasn't designed for it, so don't waste your money. It may sound like you're giving your car the good stuff, but it doesn't notice the difference, and neither will you. Photo by Kim Woodbridge.

Should I Use Premium Gas in My Car?Lots of companies have been advertising that their premium-brand gas does a better job of cleaning engine gunk, and this is somewhat exaggerated. The U.S. Environmental Protection Agency requires that all gasoline—no matter the brand or the octane—contain engine detergent to prevent engine build-up. Now, some gasoline makers (such as Shell) may put more detergent in their gasoline, but there's really no concrete data to prove that this does a better job of cleaning your engine. But, if you ever find you do have a problem with engine build-up, HowStuffWorks notes that you can just as easily buy detergent at an auto shop or gas station and add it to the tank yourself.

So, in the end, the answer is pretty simple: read your owner's manual. You might be surprised at what you find, even if you have a luxury car—if it says recommended, you can go down a grade if you so choose, and if it says required, you should probably stick with the grade it requires. Check out the Federal Trade Commission's fast fact sheet for more info on the benefits of high octane gasoline, and the laws surrounding it.

Sincerely,
Lifehacker

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