Last week marked the historic announcement of the first detection of gravitational waves. A big press conference was held, and physicists around the world celebrated. The discovery was even compared to Galileo looking through a telescope for the first time. So why all the fanfare? Why are gravitational waves such a huge deal?
Astronomers observe the universe across the electromagnetic spectrum, from X-ray and ultraviolet through optical and down to radio frequencies. Emission in each of these frequency ranges provides different information and thus a different perspective on our astronomical points of interest.
For example, we know that there are millions of stars clustered toward the center of our Galaxy which emit mostly at optical wavelengths, but there is also a lot of dust near the Galactic center as well. So to study those dust-enshrouded stars, astronomers must observe them at either infrared wavelengths (where the dust emits) or radio wavelengths (which can penetrate through the dust more effectively than shorter optical wavelengths). All of these wavelengths offer a unique perspective on the universe, but they are all the same
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Gravitational waves are an entirely new phenomenon different from anything on the electromagnetic spectrum. In 1915, Albert Einstein proposed a radically different way of looking at gravity with his theory of general relativity. Rather than thinking of gravity as a force pushing and pulling massive objects in different directions, he described gravity as being manifested in a curvature of spacetime. In other words, the space (and time) around a massive object is curved, which then dictates how passing objects can move through that space.
This may sound crazy, but we can actually observe many of the effects predicted by Einstein’s theory. For example, general relativity informs us that time passes more slowly by an ever so small margin down here on Earth than it does for GPS satellites in orbit, an effect known as time dilation, a result of the curvature of spacetime. Without adjusting for this small time difference in our satellite communications, we would never get to where we are trying to go.
A consequence of the general relativity framework is that when objects accelerate through this warping of spacetime, they produce ripples known as gravitational waves. These waves propagate through space, compressing it in one direction and stretching it in another.
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So why did it take 100 years to detect them? These ripples are tiny, on order of a thousandth of the size of a proton nucleus, so we need a pretty violent event to occur to produce enough of them for us to detect. We also need, of course, a very sensitive detector.
Sabrina Stierwalt, PhD, is an astrophysicist at Occidental College and the host of the Everyday Einstein podcast on Quick and Dirty Tips.I’m Dave, the founder of Gravity Wiz. My partner, Clay, and I are passionate about helping our customers build amazing things with Gravity Forms.
To aid in this endeavor, we created a suite of 35+ handcrafted add-ons for Gravity Forms. It’s called Gravity Perks and it’s a one-stop magic shop for powerful Gravity Forms features. Each add-on (we call them perks) provides a unique feature-set. Combine multiple perks to solve complex problems and skip the headaches and time-sinks of custom development.
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The best part isn’t even how much time you’re going to save or how impressed your clients will be when you overdeliver. It’s the peace of mind you’ll feel every time you take on a new project, knowing that you’ve got a team of Gravity Forms wizards ready to help you succeed.
Today, we’ll share a few examples to demonstrate how Gravity Perks provides the tools you need to handle complex requirements and deliver robust results.
Make sure to read through to the end of this article. We’ve included a rare, limited time offer for up to 30% off of a Gravity Perks license!
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One of the amazing things about Gravity Forms is how much it gives you out of the box. Add a Product field and set up your payment add-on of choice, and boom! You’re collecting a payment for a product or service just like that.
Appointments have a few additional requirements though. You need to make sure the same time slot can’t be selected multiple times for the same day and that the user can only select a future date. Gravity Perks has two perks that can help.
Your client needs a way for their little league’s coaches to register their team and players on the league website. Currently, coaches have to fill out the team form and then go back and complete a separate form for each player. You’re left trying to figure out a reliable way to link the players to the correct team.
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Skip all that drudgery with Nested Forms. Nest your Players form into the Team form so the coaches can create the team and register their players in a single submission! Combine this with Gravity Forms’ User Registration Add-On and automatically register each player as a user on the league website so they can access the Players portal your client forgot to mention until the day before launch. 😆
Install Email Users to send bulk notifications to your league’s players about the date of the makeup game due to rain delays. Want to skip the rain? I’m sure we can find a spell for that too. 🌧
We all love a nice discount. It just feels good! We both know you’re looking forward to that coupon at the end of this article. 😉
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Gravity Perks provides a number of ways to entice your customers with tasty discounts that will encourage them to buy or buy more.
Early Bird discounts reward customers for making an early commitment or for simply staying in the loop. Using eCommerce Fields‘ Discount field and Conditional Logic Dates, you can create a discount that is only applied before a given date.
Want to encourage customers to buy more of your product? Bulk pricing is highly effective. The more of an item they purchase, the lower the price. Conditional Pricing makes quantity-based pricing a breeze. Add as many pricing levels as you need.
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Shipping physical products? Letting the user check on the status of their order is a great way to reduce requests to your customer support team asking for a status update.
With Unique ID, you can easily generate a fully customizable, safe, and un-guessable reference number for customer orders. Combine with a shipping zip code and billing last name to make order lookups easy and secure.
Populate Anything provides the magic sauce to actually look up the order based on the provided reference number and order details. Once it has the order, you choose which information you want to display (like the shipping status).
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These use-cases really spell out (wizard pun intended) how modular and powerful Gravity Perks is but they don’t speak to our long history of providing legitimately magical support.
“Gravity Wiz provides the kind of support others only claim to provide in marketing materials. Since 2016, more than once, David and his team have helped me find creative, elegant solutions to some pretty daunting issues I thought could only be handled by paying a developer a lot of money to deliver. I’m a Gravity Wiz customer for life!”
“Gravity Wiz is pure wizardry at its best. I invested in their plugins for a large customer project. The solutions they provide are superb, and even more superb is the level and quality of their support.”
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We don’t do sales very often at Gravity Wiz. It’s a sorcery we use sparingly. But Certified Developer Week doesn’t happen every day! Here’s your chance to save some coin on Gravity Perks and secure access to the most helpful, talented Gravity Forms wizards in the world.
Use coupon code CDWEEK at checkout to receive these sorcerous discounts. Remember! This coupon is only valid for the duration of Gravity Forms’ 2021 Certified Developer WeekAll the while, I spent early mornings, long days, and late nights developing Gravity Forms solutions for clients to address every Gravity Forms scenario WordPress builders encounter. Now, it’s my day job — enhancing Gravity Forms’ unparalleled out-of-the-box functionality!
The result of this work is a suite of 36+ Certified Gravity Forms Add-Ons, over 500 snippets, and 15, 000+ Gravity Perks users.
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However, I’m going to distill (to the best of my ability) our years of hard work into five essential tools you can use to take your WordPress projects to the next level.
Populate Anything lets you dynamically filter and populate field choices or values with posts, users, taxonomies, terms, Gravity Forms entries, Google Sheets, and databases – pretty much anything. 😏
Imagine a scenario where you want to populate your form’s user-facing choices in real-time with food options from a menu you manage in Google Sheets. Or, maybe you want to provide form users the ability to select from a list of already registered users or submitted posts on your website. When we say you can populate anything, we mean it!
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Gravity Forms’ built-in conditional logic lets you show or hide populated fields and content used with Populate Anything, based on prior user input. You can create more complex
