Machinery and Tools

There is no fed batch continuous reactor as far as i know. But there are batch, fed-batch and continuous type reactors. Basically a batch reactor is one in which you fill up all the things and lock it down for fermentation while in a fed batch you keep putting the feed in and allow cells to grow as much as possible or until you reach the capacity of the reactor where as in a continuous reactor you keep feeding in and taking out the product continuously that is why continuous type reactors run for long time like weeks or months.

stop

That's one for the imam. (I presume a "wonka nerds' rope" is something edible, like a licorice stick.)

the name of the game cold rope is jumping rope

refrigerant has a natural affinity for heat

I have a Paul Bunyan chain saw. It is at least 35 years old. It worked in 1986 but I had not used it since then. I think it is made by John Deere. I would like to sell it but I don't know if it is worth much in its condition.

Stihl 029 super 56.5cc 3.8hp

for fun and exercise

No, a wrench is a wrench

Because sometimes you need to pound things, and that's not good to do with a wrench or screwdriver.

The spindle moves up and down and carries the shaft of the drill inside it. As the drill turns inside the spindle, the spindle can be lowered, bringing the drill bit into contact with the work.

When the vertical circle of the theodolite is to the left of observer, it is in face left position. Similarly when the vertical circle is to the right of observer it is in face right position.

A theodolite is a survey instrument. A tachometer tells you how many Revs per minute an engine is turning.

None really, you just have to extra careful working near finished surfaces.

I'm sure it's worth a lot to you, but nobody cares about good quality tools any more. There is so much cheap junk on the market, people now would rather buy something cheap and gaudy than a quality made tool.

No jump rope is not a compound word. For example: bathroom,classroom, and are all compound words. The words: jump rope, line backer, and football field are all different things without the second word, but unless they are joined they aren't compound.

Screwdriver help people to work fast

Craftsman

Please follow the link to a youtube video that shows how to remove and replace a chain.

The pulley attached to the motor usually has a large wheel on bottom, two medium wheels in centre of the stack and a small one on top. The front, or spindle pulley, is fitted with the large wheel on top. The drive belt can go from top at back, to top at front -thus driving the spindle slowly. If you changed the belt to the big motor pulley and a small spindle pulley the spindle would rotate faster.

Screwdrivers can cost as little as a dollar. In all tools you get what you pay for. I have $15 dollar screwdrivers that have lasted over 20 years and I've broken many 1 dollar screwdrivers.

The bubble comes to centre when level.

Yes, used carefully it will cut both.

An unknown inventor/toolmaker in about 1895.

Both # 1 and # 2 phillips screws are very common in electrical fittings.