Monday, March 23, 2020
Top Six (Really) FREE Image Sites - The Writers For Hire
TOP SIX (REALLY) FREE IMAGE SITES With the Internetââ¬â¢s seemingly endless stream of images for any given subject, itââ¬â¢s hard to know which ones are free to use, and which ones are protected by strict copyrights. Seeing a large watermark on an image is generally a good indication that the image you are looking at is copyrighted. But what if there is no obvious copyright watermark? And what if you are able to click on the image and save it to your computer? Does that mean that you are legally permitted to use that image for your personal websites or blogs? The answers to these questions are not always clear, and even when you think you are following the right steps to make sure you are using an image that is not copyrighted, images that seem to be copyright free are sometimes only copyright free in certain situations. The Sticky Details of Copyright Laws Unfortunately, image copyright laws can be complicated to navigate. And violating those copyright laws can lead to penalties and expensive lawsuits. Sure, there is a chance that the image you use will never be discovered. But the reality is that whoever took that picture or created that image deserves to be properly credited and compensated for their work. That is where copyright licenses, and the laws that protect them, come into play. There is a huge array of different copyright licenses that control how and when images can be used. Some licenses are very restrictive, while others allow open and free use of the image. The trick is figuring out which license your image is covered by, and what that license allows and prohibits. For example, Flickr images are protected under eight different types of Creative Commons copyright licenses. The particular license used for each individual image is up to the discretion of whoever created or owns the image. So, when using Flickr images, it is important that you find out which Creative Commons license is applicable to the particular image that you wish to use. Types of Copyright Licenses While there are a number of copyright licenses out there, some of the most commonly found licenses are: All Rights Reserved: With this license, the copyright holder reserves all rights provided by copyright law. This includes the right to make copies, distribute the image, and license or otherwise exploit their work; no rights are waived under this license.Royalty Free: A royalty free license allows you to use the image without having to pay any kind of royalty. Royalty free images are generally found on stock-photo sites, where the royalty has been paid already through your membership to the site.Public Domain Work: Images classified under the Public Domain have been identified as being free of known restrictions under copyright law. This means that the image is free to be used for all purposes, without needing to seek permission or pay a fee.Attribution: If an image is covered by the Attribution license, it may be used for personal or commercial purposes, as long as the user gives proper credit, provides a link to the license, and indicates whether any changes were made to the original image.Attribution-ShareAlike: Like the Attribution license, this license allows free use of the image with proper attribution. It also requires that if you change or build upon the image in any way, you must distribute your contribution under the same license as the original.Attribution-NoDerivs: Again, this license follows the same rules as the Attribution license; however, if you make any changes to the original, you may not distribute the modified image.Attribution-NonCommercial: With the NonCommercial clause to the Attribution license, you may only use the image for personal use. The image may not be used for commercial purposes. Educating yourself on exactly what these licenses cover, and making sure you know which license pertains to your image, is imperative if you wish to avoid any possible copyright infringements. Penalties For Copyright Infringements Making the mistake of using a copyrighted image without permission can hold some pretty hefty consequences. First of all, itââ¬â¢s never fun to receive a scary looking ââ¬Å"Cease and Desistâ⬠letter or an ââ¬Å"Unauthorized Use Reportâ⬠email. Even worse, though, is when those notifices are accompanied by a demand that you pay a license fee or face further legal action. And if you think you can get away with ignoring the notice and fee demand, think again! Failing to respond to the cease and desist can cost you a fine of anywhere from $200 to $150,000, plus attorney fees and damages. To top it off, the image owner can take it as far as using the DCMA (Digital Millennium Copyright Act) to get your entire site shut down. So, How do you Know if Images are Truly Copyright Free? The only way to know for sure is to check into the license for the particular image that you want to use. When using sites such as Flickr or Shutterstock, each individual image should have a licensing agreement that explains whether or not the image can be used, for what purpose it may be used, and whether or not there is a fee associated with its use. However, if you are simply doing a Google image search, the license information is not always easy to find. Often, it is nearly impossible to find out who actually owns the license for many of the images. And although it is possible to set Google parameters to show only copyright free images, there is no guarantee that the images that are shown are truly copyright free. For this reason, we recommend that you always choose your images from a site where licensing information is clearly posted and easy to understand. While there are many different image sites to choose from, these are our top six favorite sites for free images: https://www.pexels.com/https://burst.shopify.comhttps://www.reshot.comhttps://pixabay.comhttps://gratisography.com/https://pxhere.com/ Not only do these sites contain breathtakingly beautiful images, they all also clearly state that their images are available for both commercial and non-commercial use and that credit to the photographer is not required but is, as always, appreciated. And the best part? Sticking to one of these sites for your image searches will ensure that you can have peace of mind in knowing that you will not be in jeopardy of unknowingly committing a copyright infringement. **Note: While the sites we recommend do have copyright free images, it is always important to read the fine print before using an image. Although the image itself may be free to use, some of the things depicted in the images (such as identifiable people, landmarks, or trademarked logos) may have other copyrights or trademarks that require consent from a third party.
Friday, March 6, 2020
The drop time of the paper helicopter Essay Example
The drop time of the paper helicopter Essay Example The drop time of the paper helicopter Paper The drop time of the paper helicopter Paper If the mass of the paper helicopter increases, then the drop time of the paper helicopter will decrease because the paper helicopter with the greater mass will take a longer time to reach terminal velocity ( when there is a balance of forces and thus zero acceleration) which results in a shorter drop time because the object is still accelerating. The mass of the paper helicopter will be measured by using 5 paperclips of each . 7g and the same paper helicopter whose mass is . The drop time will be measured with a stopwatch . The timing will start when the hand lets go of the paper helicopter at a drop height of 1 meter and stop when the paper helicopter touches the floor. The same person will be timing for each trial. A control of this experiment would be having the drop height the same throughout the experiment. This will be measured by using a meter stick and marking the height at which to drop the paper helicopter. The paper helicopter will drop at that marked height each time. Another control of this experiment would be having the same person timing the experiment for every trial. To keep the data as consistent as possible, the experiment will be using the same stopwatch, electric scale and paper helicopter each time. Another control would be using 5 paperclips of each with a mass of .7g . Measure each paperclip by placing them (on at a time) onto the electric scale and record. Based on the data collected, the hypothesis is accepted because as the mass of the paper helicopter increases, the average drop time decreases. This is evident in the data collected because the paper helicopter with a mass of 1gà had the highest average drop time of while the paper helicopter with a mass of 3. 8g had the lowest average drop time of. This is due to Newtons first and second law. Newtons laws states that an object will accelerate if the forces acting upon it are unbalanced and the amount of acceleration is directly proportional to the amount of net force acting upon it. Falling objects initially accelerate because there is no force big enough to balance the downward force of gravity so the object will continue to accelerate until the air resistance force increases to a large enough value to balance the downward force of gravity. Thus the objects (in this case paper helicopter) with a greater mass will continue to accelerate for a longer period of time then a paper helicopter with a lower mass which thus results in a decrease in drop time. One of the biggest weaknesses in this experiment was the human error with the reaction time when starting and stopping the stop watch. It is impossible to correctly start and stop the stop watch when the paper helicopter drops because of human reaction time (time needs to pass before the thought from the brain reaches the hand to start and stop the stopwatch). This serves as a limitation because although the stop watch was controlled by the same person each time, a different time lapse will pass each time thus causing the inability to accurately time the helicopter drop each time. Another weakness would be that since the person holding the paper helicopter each time has to move their hands, the angle at which the paper helicopter is dropped wont be the same each time which results in a shorter or longer drop time if the paper helicopter lands closer or farther from where it was dropped. There are several ways to improve this investigation to make the data more accurate. To decrease the lapse in stopping the stop watch, using a higher drop height would give the person timing more time to react to when the paper helicopter reaches the floor because the original procedure allowed (at max) 65 seconds to react from the time it took the paper helicopter to drop from the drop height to the floor. Another way to improve this investigation would be to create a stand that will hold the paper helicopter at the same drop height and angle each time so that the distance that the paper helicopter will land will be the same each time. This will reduce the error in time because of a shorter or longer landing distance.
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