shock wave
Typically, when air is displaced by a pressure wave, it moves at the speed of sound. These pressure waves can be generated from one's vocal cords (when speaking), the vibration of an object, or the impact of one object against another. However, in certain cases, the pressure wave is generated by a collision between air parcels, such as when lightning heats the air immediately around it. This rapidly-expanding air crashes into the cooler air around it, generating a massive spike in pressure followed by a sharp drop-off. It is this sharp spike and drop-off combination that differentiates a sound wave and a shock wave. Shock waves can be either naturally generated, in the case of volcanic eruptions, lightning strikes, and asteroid impacts; however, they can also be generated through man-made means, such as explosives that derive their power either from chemical energy that is converted into thermal energy or by way of nuclear fission or fusion. If the pressure differential occurs in air where clouds can condense, the act of high pressure passing through the area and low pressure following can cause temporary "Wilson clouds" to form.
The Urban Dictionary Tee
Great fit and soft material. Gave as gift. Big hit!
Great conversation piece! Plus I can never find anything with my name on it. This was a great find! Will definitely order more!!!!
Got exactly what I wanted.
Exactly what I expected, thanks!
I don't visit Urban Dictionary alit so I only recently saw they offered merch. I immediately started looking up words for potential Christmas gifts. Found the ideal gift for my brother & ordered a shirt. It arrived very quickly and I love it. It's exactly as pictured on the site and being able to customize it with his name makes it perfect. I only hope he loves it as much as I do. Will definitely keep Urban Dictionary in mind when I need to find a great gift.
i love my shirt i made it say sapnap cause yassssssssss
Best This is the best shirt I have ever gotten I love it and I definitly recomend it to any friend named Hailie
So cool to quickly be able to turn a trending phrase into wearable art!
it was really good i put dad with the def of tfu and lol
*clap* *clap* MEME REVIEW. this is so amazing, alexa play despacito 9001
Love this shirt. Got it for my brother for Christmas and I can’t wait for his reaction! Ordered size L and it seems maybe a little big? Thank you!
thankyou for all your kind reviews. For everyone complaining about the spelling we was high on the bezamine while writing it so fuck youuuuuu
I love it
I really love it it's me through and through. Thank you. And when I want another shirt made I will be going through you guys.
ThIs is perfect
Great quality and fast shipping and I just dropped my mug.
This T-shirt is a high quality product. It fits perfectly and is very comfortable as well. I'm totally satisfied with the product and recommend it to everyone. Not to sound like a commercial or anything, but I really am impressed! Check it out for yourself. If you're thinking about buying something, go ahead. I'm sure I'll be buying more for a few friends soon. Thanks guys! I love this shirt! For real.
My niece laughed and loves her custom shirt.
Not only was the product exactly what I expected, I was well informed on the shipping process in a seamless and timely manner!
The T-shirt was a birthday gift for my girlfriend and she absolutely loved it.
Review Details
Pro Customization
Create unique products with your own words and definitions
Live Preview
Personalize Your Design
Debug: Product Metadata
| Key | Value (click to copy) |
|---|---|
|
Copied!
|
|
Return Policy
Made Just For You
Each product is custom-printed with your unique text, making it truly one-of-a-kind.
Defect-Free Guarantee
If your product arrives with printing defects, damage, or quality issues, we'll send you a free replacement.
Custom Orders
Due to the personalized nature of your order, we don't accept returns for change of mind or sizing issues.
Questions about your order? Contact our support team for assistance.
Share this product
Size Guide
Measurements may vary by up to 2" (5 cm). Pro tip: Measure one of your t-shirts at home and compare!
A - Length
Measure from the top of the collar to the bottom hem
B - Width
Measure across the chest from armpit to armpit
Size Chart
| Size | Length | Width |
|---|---|---|
| XS | 27" | 16½" |
| S | 28" | 18" |
| M | 29" | 20" |
| L | 30" | 22" |
| XL | 31" | 24" |
| 2XL | 32" | 26" |
| 3XL | 33" | 28" |
| Size | Length | Width |
|---|---|---|
| XS | 69 cm | 42 cm |
| S | 71 cm | 46 cm |
| M | 74 cm | 51 cm |
| L | 76 cm | 56 cm |
| XL | 79 cm | 61 cm |
| 2XL | 81 cm | 66 cm |
| 3XL | 84 cm | 71 cm |