The ladder itself (or any other tool) is part of a technology.
The ladder (or any other tool) was designed by using engineering principles, which are based on scientificknowledge.
There are many places one can purchase a ladder for a bookcase. The most reliable online outlet for purchasing this item would be Amazon. You can also visit stores such as target or Walmart. There is also an episode on "This Old House" that might be useful in constructing your own ladder for a bookcase.
no but do the science activities to get your alien up quicker
there has been a breakthrough in modern technology. introducing the ladder you can walk up it to get high places
Sakda Thanitcul. has written: 'Industrial ladder and technology import regulation' -- subject(s): Law and legislation, Technology transfer, History, Law and economic development, Industrial promotion
what are the staps on a ladder called
A loft ladder, otherwise known as an attic ladder, is a retractable ladder that is built in to the floor of the attic. An extension ladder is a free standing ladder that can be moved around at will.
ladder
You could use "ladder" in a sentence like this... I climbed up the ladder to get in my attic. My dad owns a ladder. We keep our ladder in our backyard. I climbed up the ladder. Do you own a ladder?
A rung of a ladder is the little bar that you step on when you are climbing a ladder.
Walk through, walk over or walk under. The opposite will always involve doing the thing that walking around it would avoid."We walked around the lake""We walked through the lake""We walked around the mountain""We walked over the mountain""We walked around the ladder""We walked under the ladder"
A type of ladder
Ladder = Escalera