What is space debris (碎片)? What are the safety threats it presents? Space debris is also called space junk, 1 humans have placed in space. The junk floats around 2 (hundred) of kilometers above the earth. Experts say the main worry is that such debris will hit a space station, sate...
The obvious question is who will pay for it, manage it and be responsible for it. A space Dumpster would cost as much as or more than designing and launching a normal satellite, and no one wants to pay for and pick up someone else's trash.For now, there are about 15,000 -20,000...
months,thereislesschlorine (氯)inthewater andbacteria (细菌)starttogrow.You?dbetter notdrinkthewaterotherwiseyoumaygetsick. 10 Schwabsaidpeopleshouldbecareful withthem.Ifyouleaveabottleofwaterunderthe sunorinacarforalongperiodoftime,theplasticproducesachemicalcalledBPA.Thischemical cancauseheartdiseaseandca...
Can’t believe how gullible she is. 34. 25 INT. DONG-IK’S CAR - DRIVING - NIGHT Dong-Ik is going through some papers in the back when one drops under the seat. As he reaches down to grab it -- He sees a vague WHITE SHAPE beneath the passenger seat. He picks it up. A...
spirit,but not well-experienced in this society.We often need the help of others.On the other hand.we should delicate to this society by helping others who are in trouble.For instance,we can help the cleaners by picking up the trash on the street,in this way,we also protect the ...
As a matter of fact, it is a combination of picking and jogging, which means picking up trash while working out. Many people think highly of it because plogging benefits us a lot. It not only helps us keep physically and mentally healt...
astronautstomakecomponents(零件)quicklyandconvenientlyinspace.Thetechnologywillsave futurespacejourneysconsiderableresourcesandcosts. Infact,thedeviceisnottheonlyrepresentativeof3Dprintingonboardtheprototype. ACubeSatdeployer,designedandmadethrough3DprintingbyCoSatsSpaceTechnology,is alsocarriedbythespacecrafttocheckthead...
Change is constant and so it’s important that your trash cans and recycling bins are able to stand the test of time. To help you keep up with the moving times, we’ve answered all your questions aboutfuture-ready trash cans and recycling bins. ...
Today , most people do not throw garbage on the floors or in the middle of the street. Instead , we put it in trash cans , the garbage truck hauls it away , and we forget about it .But where exactly is " away"?When you put ...
Removing junk files is not only safe, it can also help to speed up your PC or optimize your Mac by decluttering your drive and freeing up disc space. To get rid of junk files completely, move them to your trash and then empty it. How do I find and identify junk files? Junk files...