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Details about  BLACK HOLE Maxwell Equations T-SHIRT (Science) - YOUTH/KIDS SMALL!!

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BLACK HOLE Maxwell Equations T-SHIRT (Science) - YOUTH/KIDS SMALL!!
Item Ended
Item condition:
New with tags
Jul 27, 2012
US $18.95
$3.75 Standard Shipping | See details
Item location:
Raytown, Missouri, United States


eBay item number:
Seller assumes all responsibility for this listing.
Last updated on  Jun 28, 2012 09:59:09 PDT  View all revisions

Item specifics

New with tags: A brand-new, unused, and unworn item (including handmade items) in the original packaging (such as ... Read moreabout the condition
Size: Youth Small (6-8)
Sleeve Length: Short Sleeve Color:


Occasion: Everyday Material: 100% Cotton


This T-shirt depicts a graphical representation of a black hole - the curvature of space-time caused by the immense gravitational attraction of a black hole. The equation shown is used to calculate the critical radius (or Schwartzschild radius) of a black hole: the distance from the center of the collapsed star at which its escape velocity equals the speed of light. Anything that gets within this radius, even a passing beam of light, is trapped forever. This also stops any radiation escaping from the star itself, hence the name "Black Hole". Rs is the Schwartzschild radius - M is the mass of the star in solar masses (our sun is one solar mass) - G is the gravitional constant - C 2 is the speed of light squared.

The back is printed with the four equations of light derived by James C. Maxwell. He was the first scientist to propose that light was actually a wave, made up of electric and magnetic fields. These four equations unify electricity and magnetism describing the behavior of light and electromagnetic radiation were published in 1873.

The shirt is black in color and is of top-quality fabric, construction and printing. It is 100% cotton and is preshrunk. It is printed with long-lasting inks to keep it looking and feeling good. If washed inside-out and not overdried, it will prolong the life of the T-shirt. This T-shirt is size Youth Small (6-8).  It is new in package.

If you want a T-shirt that is not only neat looking, but educational, this one is for your child! Thanks for viewing this listing.


We accept PayPal and most major credit cards.  Item will be sent when payment is received.  Payment is expected within 7 business days.  If payment is not received in this time period, the item will be relisted and negative feedback will be left.  We will furnish a telephone number to arrange payment if you prefer to pay by credit card. 

Shipments to Missouri (5.475%) and Kansas (6.30%) will be added for sales tax.  If your state requires payment of sales tax on ebay items, please add the appropriate tax before paying. 

Shipping within the United States will be $3.75. 

We will ship internationally if item is paid through PayPal Verified, and $7.50 is added for postage.   International customers are responsible for any customs or duty fees that your country might impose on shipments from the United States.  Please email with any questions or concerns prior to purchasing this item.

Return Policy
All items are checked before shipping as we make every effort to ensure items are not defective. All sales final.  Return of defective product only.  In seventeen years, we have not had a claim as our products are wrapped to ensure safe delivery.

Contact is expected either by phone or email within 72 hours of auction end.  Remember that your bid is a legal, binding contract.


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