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In addition to the illustration above, you can also use the details below to help guide you and determine if a decibel level is safe or not. Looking at a decibel chart such as the one below, we can determine if those sounds are safe, potentially harmful, or outright dangerous for our ears. The intensity of common sounds ranges from 0 dB to 140 dB. This means sounds above this level can result in hearing damage or hearing loss depending on the duration of your exposure. Sounds above 85 dB are considered by specialized organizations like NIOSH (the US National Institute for Occupational Safety and Health) to be dangerous to human hearing. The range of sounds measured on the decibel scale is from 0 dB (the quietest sound) to 140 dB (the threshold of pain). We use the decibel scale to determine how loud sounds are and if they are safe or harmful to human hearing. Therefore, a 10 dB sound is 10 times more intense than a 0 dB sound, a 20 dB sound is 100 times more intense, and a 30 dB sound is 1,000 times more intense. However, the decibel scale is logarithmic, not linear. To measure a sound’s frequency, we use the hertz (Hz).Įach time a sound’s decibel level increases by 10, its intensity multiplies by 10. To measure the noise level of different sounds, we use a measurement unit called the decibel (dB). Using this chart, you can be more aware of the noise levels that can cause hearing damage and protect your hearing. In this article, we’re using a comprehensive decibel chart of common sounds to compare different decibel levels. However, we may not always be aware of just how loud some sounds can be. The human ear is very sensitive and perceives even the smallest differences in sound intensity. Measure the Sound Level Around You With Decibel Pro App.Noise Level Chart and Maximum Exposure TimeĤ.1 Beware of the Noise Levels Around You.Comprehensive Decibel Chart of Common Sound Sources Restart your Mac by pressing the power button for around 6 seconds (if this doesn’t work, try booting in Safe mode). If you see a black or blue screen that won’t go away, that’s a sign that your Mac probably froze trying to load a problematic app or login function. The startup only shows a blank screenĪ failed MacBook startup can show a few different colored screens, and each means something difference. Depending on your warranty, you may be able to get a replacement. If the SMC step doesn’t work and your Mac keeps on shutting down, it’s probably time to take it into an Apple Store. If something has gone wrong, resetting the SMC is a quick way to fix it. This controls many of the important hardware processes of your Mac, like battery charging, sleep modes, and more. Now try resetting your System Management Controller (SMC). This allows your MacBook to perform a healthy, full shutdown procedure. Once MacOS loads, choose to restart your Mac again. If this shutdown happens, restart your Mac with the power button and wait for it to power back on and load MacOS. This critical exploit could let hackers bypass your Mac’s defenses Little Snitch is a helpful app to block apps from “phoning home” without your knowledge.The biggest Mac announcement at WWDC was about the old MacBook Air If an app’s usage seems relatively high, you might want to investigate if an app is talking to the web server without your knowledge. The Network tab shows information about how your Mac is uploading and downloading network data. It also shows if it’s a 32- or 64-bit process. The Disk tab shows the amount of data that a process has read from and written back to your hard drive. The preventing sleep tab shows if an app is actually preventing the Mac from going to sleep on its normal schedule. App nap-enabled apps consume very little energy when they aren’t in the foreground. This section shows which apps support it. App nap is a relatively new feature to OS X. The average impact tab is a measure of the impact over the past 8 hours (or since startup if it’s been less than 8 hours). The impact tab is a measure of how a process is affecting energy consumption. The Energy tab is extremely useful for laptop users. Swap used is the space on your hard drive used by the Mac’s memory management process. Virtual memory is the amount of memory-address space that is being allocated for memory mapping. Memory used is the amount currently being used at the current time. Physical memory is the amount of RAM your Mac actually has installed. Toward the bottom, there’s a box with Physical Memory, Memory Used, Virtual Memory and Swap Used. As with the CPU tab, you can sort by many different options. The Memory section shows information about how your RAM is being used. You can sort by % to see which app is eating up the most of the processor capacity. I find that the % CPU section is the most helpful. If your fan is spinning on your Mac for no apparent reason, this is the section that you want to investigate. CPUĬPU shows how the processes are affecting the processor. The app is broken up into five different tabs: CPU, Memory, Energy, Disk, and Network. You can find the app inside the Applications/Utilities folder. This allows you to see how different programs and processes affect your Mac’s performance. The Mac’s Activity Monitor shows what is running on your Mac at any given time. Reactivity: First period of reactivity (6- 8 hours Transitional Assessment during the period of Respiratory rate Absent Slow, Irregular Good, Crying Evaluation of all five categories are made on 1.To ensure a satisfactory adjustment to extra uterine life.ĪPGAR score: It is method use to assess the newborn’s immediate The newborn requires thorough skilled observation Nursing Instructor, JBFNINursing Instructor, JBFNI The newborn is alert and responsive, heart and respiratory rate are increased, gastric and respiratory secretions are increased, and passage of meconium commonly occurs.įollowing this stage is a period of stabilization of physiologic systems & vacillating patern of sleep & activity. Physiologically the respiratory rate can be as high as 80 breaths/ min, crackles may be heard, heart rate may reach 180 beats/min, bowel sound are active, mucus secretions are increased and temperature may decrease slightly.īegan when the newborn awake from the deep sleep, it lasts about 2-5 hours. Transitional Assessment during the period of reactivityįirst period of reactivity (6- 8 hours after birth):ĭuring the first 30 minutes the newborn is very alert, cries vigorously, may suck a first greedily, and appears very interested in the environment. Grimace (Reflex irritability ) No response Grimace Cough Or SneezeĪctivity(Muscle tone Limp Some flexion Active movement Pulse (Heart rate)Ěbsent Slow (<100 /> 100/mĞvaluations of all five categories are made on 1-5 min after birth.Īppearance (colour) Blue or pale Body pink, Extrimities Blue Completely Pink.Initial assessment is done by using the APGAR scoring system.ĪPGAR score: It is method use to assess the newborn’s immediate adjustment to extra uterine life. Health assessment of newborn after delivery can be divided into: The newborn requires thorough skilled observation to ensure a satisfactory adjustment to extra uterine life. Tablets, hopefully, are meant to last for many years. Because instead of running a product until it fails, most of the time we’re running a product for a defined length of time and measuring how many fail.įor example: Let’s say we’re trying to get MTTF stats on Brand Z’s tablets. We can run the light bulbs until the last one fails and use that information to draw conclusions about the resiliency of our light bulbs.īut what happens when we’re measuring things that don’t fail quite as quickly? Things meant to last years and years? For those cases, though MTTF is often used, it’s not as good of a metric. With an example like light bulbs, MTTF is a metric that makes a lot of sense. You’ll need to look deeper than MTTR to answer those questions, but mean time to recovery can provide a starting point for diagnosing whether there’s a problem with your recovery process that requires you to dig deeper. Are your maintenance teams as effective as they could be? If they’re taking the bulk of the time, what’s tripping them up? Are you able to figure out what the problem is quickly? Are there processes that could be improved? Is there a delay between a failure and an alert? Are alerts taking longer than they should to get to the right person? The problem could be with your alert system. Because there’s more than one thing happening between failure and recovery. However, if you want to diagnose where the problem lies within your process (is it an issue with your alerts system? Is the team taking too long on fixes? Does it take too long for someone to respond to a fix request?), you’ll need more data. This is a high-level metric that helps you identify if you have a problem. Is it as quick as you want it to be? How does it compare to your competitors? This MTTR is a measure of the speed of your full recovery process. On the other hand, MTTR, MTBF, and MTTF can be a good baseline or benchmark that starts conversations that lead into those deeper, important questions. Some of the industry’s most commonly tracked metrics are MTBF (mean time before failure), MTTR (mean time to recovery, repair, respond, or resolve), MTTF (mean time to failure), and MTTA (mean time to acknowledge)-a series of metrics designed to help tech teams understand how often incidents occur and how quickly the team bounces back from those incidents.Ī lot of experts argue that these metrics aren’t actually that useful on their own because they don’t ask the messier questions of how incidents are resolved, what works and what doesn’t, and how, when, and why issues escalate or deescalate. Which is why it’s important for companies to quantify and track metrics around uptime, downtime, and how quickly and effectively teams are resolving issues. Glitches and downtime come with real consequences. In today’s always-on world, outages and technical incidents matter more than ever before. Second, you’re moving the unmelted sugar to the hotter spots on the pan to begin melting. You’re doing this for a couple of reasons - first, you want to keep the melted sugar from browning too fast and burning. Using a heavy duty spoon or heat-safe rubber spatula, scrape the sugar from the edge of the pan to the middle. Leave the sugar alone until you see it begin to melt. Place the sugar into a large frying pan set over low heat. Ahh…how I miss those days when I could just go out to the back yard and husk open coconuts that just fell off the trees. And to think I paid about $2 for each coconut….įor those of you living on Guam or in a place where coconut trees abound and you don’t have to pay an arm and a leg for them, be thankful. The other bad coconut, after cracking it open, had mold growing between the meat and shell (more yuck!). In one of the coconuts, the liquid smelled sour (a sure sign of spoilage) and the meat felt slimy (yuck). However, the coconuts must have sat in the store for who knows how long. The coconuts I bought–the ones that ended up being bad–had liquid in them when I shook them. A coconut that either has very little liquid sloshing around or feels light (compared to the weight of other coconuts) are an indicator that the coconut meat inside is dried out or spoiled. The coconut should also feel rather heavy. If you don’t hear and feel any liquid while shaking the coconut, do NOT buy it–it’s gone bad already. You should hear (and feel) liquid sloshing around inside. Sure enough, two of them ended up being spoiled and moldy inside.īefore buying coconuts, shake them. For this batch, I actually bought four coconuts knowing I only needed two. If you live in the states, it’s sometimes difficult to find coconuts that haven’t already spoiled. On Guam, we either cut the coconuts off the trees or pick up the brown ones (niyok) off the ground, then shake them vigorously, listening for the telltale sloshing of the coconut juice. If you can’t find fresh coconuts or don’t have a kåmyu (coconut grater), you can buy frozen grated coconut–make sure you use the UNsweetened kind.īefore continuing with the directions, I think it’s important to explain how to choose fresh coconuts. You should get roughly 4 cups of grated coconut from 2 large coconuts. Finely grate the coconut the smaller/finer the coconut flakes, the better. I’m sure they’d love making AND eating it. Give my recipe a try…get the kids involved in making them too. I love the taste of coconut, but to me, the best part of this candy is the caramelized sugar (yum!). Just be sure NOT to use the sweetened coconut flakes. This was also a popular treat at bake sales coconut candy was usually the first item to sell out.įreshly grated coconut is a key ingredient, but you can easily substitute it with frozen grated coconut. Growing up, we’d make this a lot during Chamorro Week at school. Coconut candy is an island dessert that’s so simple to make, and fun to get the kids involved in making it. Jeremy Sturdivant, then 19, saw the post and was the first person to take Hanyecz up on his offer. The Bitcointalk forum history logs indicated that Hanyecz made numerous “bitcoin for pizza” transactions into the summer of 2010, until deciding to suspend the open offer in August of that year.Ī lesser known character - but one critical to the story - is the student who accepted bitcoin for pizza. While 10,000 BTC is now worth hundreds of millions of dollars, Hanyecz says that he doesn’t regret his purchase and is proud to be part of Bitcoin folklore. This means an individual bitcoin was worth about USD 0.004 at the time of purchase. Here’s why:Īt the time of the exchange, 10,000 BTC could be purchased for around USD 41. May 22 has gone on to become the annual event known as Bitcoin Pizza Day. Ostensibly the first person to physically purchase something with BTC, he has become somewhat of a crypto-celebrity in his own right. Upon receiving his cheesy delivery, Hanyecz posted photographic evidence of his family enjoying the pizzas. Four days later, on May 22, 2010, Lazslo’s order was filled he claimed to have received one large cheese pizza and one large supreme pizza from the pizza chain Papa John’s. The poster - a software programmer from Florida named Laszlo Hanyecz - expressed his topping preferences and the desire to have the pizzas delivered. It offered 10,000 bitcoin for 2 large pizzas. On May 18, 2010, a post appeared on the Bitcoin messaging board Bitcointalk. While receiving very little fanfare at the time, this event later came to be seen as a watershed event known as “Bitcoin Pizza Day.” The Guy Who Bought Pizza With Bitcoin This transaction saw bitcoin traded for two pizzas. The following year in 2010, the first real-world BTC transaction was documented. Known to only a niche community early on, it was initially unclear if BTC could be used as a viable currency at all, or what its market value could become. Īt the time of launch, the Bitcoin blockchain’s native cryptocurrency bitcoin (BTC) was mined at a rate of 50 BTC every ten minutes. Bitcoin was the first crypto to reach the public consciousness, and that set the groundwork for every cryptocurrency that followed - including Ethereum, Dash, Zcash, and Cardano. That moment is considered the inception point for the explosion of innovation that has since followed in blockchain, cryptocurrency, and decentralization. The Bitcoin network was launched on Januby Satoshi Nakamoto, an anonymous individual or team of technologists whose identity remains unknown. AR-15 muzzle brakes (for example) do this task fairly well to a degree, but not as well as compensators. It’s like balancing out a see-saw, but with significantly more explosions. When the initial burst of energy from your cartridge going off and the gasses expelling from your barrel forces your rifle up, the holes divert the gasses upwards to apply some downforce to restabilize the rifle. Additionally, the way in which the holes cut into the device redirects gasses also mitigates the ‘upturn’, or vertical recoil gun has when firing subsequent shots. This is done by allowing the gasses to escape in several directions perpendicular to the barrel, as opposed to directly outwards. Muzzle brakes are muzzle devices with a primary focus on eliminating ‘felt’ recoil, or in layman's terms: to reduce the overall amount of energy going back into your hand or shoulder. So, let's find out exactly what a muzzle brake is, and what it does. Everyone develops a flinch at some point, and shooting a large caliber without a brake isn't any fun at all. Most commonly seen on precision bolt guns, the muzzle brake is the best device for long days at the range shooting larger calibers to keep your shoulder from getting too beat up. So which is the right one to use, and what specifically do they do? MUZZLE BRAKES: These most commonly come in the form of a muzzle break, a flash-hider, or a compensator.ĭespite the shared job of manipulating the gasses expelled from the rifle, the muzzle device you choose can drastically affect both the performance and behavior of your rifle. One of the most important features of modern rifles are the chunks of machined metal threaded or permanently milled onto the end of the barrel known as ‘muzzle devices’. Much like the tools in our garage, our guns need to be set up properly to be used effectively. Our firearms are tools: Not all are created equal, not every-one is suited to every task, and sometimes you need a specific tool for a specific job. 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One of the most popular and impressive AI voice generators on the market is Murf, which enables anyone to convert text to speech, voice-overs, and dictation.
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