If you want to create your own signs or banners, you can print large letters on single pieces of paper to put them together. The easiest way to do this is to use word processing programs such as Word 2013. You can print one letter per page, but you may need to experiment to get the right font size.reate a new document. Select the font you want to use from the drop-down list in the Font section of the toolbar at the top of the page. Common options include Times New Roman, Arial and Helvetica. Click the Center icon in the Paragraph section on the toolbar, if you want to center your letter on the page.
The star that created the Crab nebula exploded in the year 1054.
At the center of the nebula lies the Crab Pulsar, a neutron star 28â30 kilometres (17â19 mi) across with a spin rate of 30.2 times per second, which emits pulses of radiation from gamma rays to radio waves.he Crab Nebula currently is expanding outward at about 1,500 km/s (930 mi/s). Images taken several years apart reveal the slow expansion of the nebula, and by comparing this angular expansion with its spectroscopically determined expansion velocity, the nebula's distance can be estimated.