
U104-A 3-phase Connection
This type of meter is used to fuel dispensers for measurement of pressurized oil.
Materials:
Body: Aluminum (Spray-Painted)
Package:
Net Weight:
1.7kg/case of 1
Gross Weight: 1.9kg/case of 1
Dimension: 36x15x15cm/case of 1
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gen—in a flask half-full of boiling water, and passed electric sparks,
mimicking lightning, through them for several days to see what would happen. What happened, as
the name of the paper suggests, was amino acids, the building blocks of proteins. The origin of life
then seemed within grasp. But it has eluded researchers ever since. They are still looking, though,
and this week several of them met at the Royal Society, in London, to review progress.
The origin of pieces
The origin question is really three sub-questions. One is, where did the raw materials for life come
from? That is what Dr Miller was asking. The second is, how did those raw materials spontaneously
assemble themselves into the first object to which the term “alive�might reasonably be applied?
The third is, how, having once come into existence, did it survive conditions in the early solar
system?
The first question was addressed by Patrick Thaddeus, of the Harvard-Smithsonian Centre for
Astrophysics, and Max Bernstein, who works at the Ames laboratory, in California, part of
America s space agency, NASA. As Dr Bernstein succinctly put it, the chemical raw materials for
life, in the form of simple compounds that could then be assembled into more complex
biomolecules, could come from above, below or beyond.
The “above�theory—ie, that the raw materials were formed in the atmosphere, and which Dr
Miller s original experiment was intended to investigate—has fallen out of favour. That is because
it depends on the atmosphere being composed of chemicals rich in hydrogen, which methane and
ammonia are. Dr Miller thought this was likely because it was known in the 1950s that Jupiter s
atmosphere contains these gases. Modern thinking, though, favours an early terrestrial
atmosphere rich in carbon dioxide, as is found on Venus and Mars. Such an atmosphere is no good
for making amino acids.
The “bey fuel dispenser ond�theory is that the raw materials were formed in space, and came to Earth either
while it was being f fuel dispenser fuel dispenser