Botany Lab Introduction to Microscope Circa 1000 AD. = the first vision aid was invented (inventor unknown) called a reading stone. Circa 1284= Italian‚ Salvino D’ Armante is credited inventing the first bearable eye glass. 1590= two dutch eye glass makers‚ Zaccharias Janssen and Hans Janssen experimented with multiple lenses. 1665= English Physicist‚ Robert Hooke looked at a silver of cork through a microscope lens and noticed some “pores” or “cells”. 1674= Anton Van Leeuwenhoek built
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him‚ but they owned him so to not give up what he knows would’ve been worst than giving it up he knew within his self (35 points) if he gave up‚ His masters win. 2. What do pieces such as “Marriage Is a Private Affair” and the excerpt from Nectar in a Sieve demonstrate about the influence of modern ideas and modern ways on traditional cultures? How are the characters in these works affected by the modernization of their respective societies? In Marriage is a Private Affair‚ It’s shows marriage
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Discuss the changes in rural areas and their impact on gender. Is modernization and development the answer? Poverty is highly found in rural areas where there is a lack of education‚ healthcare‚ limits access of choices‚ and numerous challenges for its habitants. A major cause of poverty among India’s rural people is the lack of access to productive assets and financial resources as well as high levels of illiteracy. According to International Fund for Agricultural Development (IFAD) women in
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I turned this paper in two days late‚ but the teacher was so impressed that I still got 100% Excellent; I couldn’ t have written a better paper myself. DIVERSITY OF PLANTS Plants evolved more than 430 million years ago from multicellular green algae. By 300 million years ago‚ trees had evolved and formed forests‚ within which the diversification of vertebrates‚ insects‚ and fungi occurred. Roughly 266‚000 species of plants are now living. The two major groups of plants are the bryophytes and the
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Laboratory 1 Grain Size Distribution – Sieve Analysis Introduction The grain size distribution is a representation of the approximate distribution of soil grain sizes for a soil. The sieve analysis‚ also called mechanical method‚ measures the dry mass of soil retained on each sieve in a stack of sieves‚ where the sieve opening sizes vary from the largest to smallest going from the top to the bottom of the stack. All the soil particles retained on a particular sieve will have an ‘intermediate size’ or
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described quantitatively according to different soil mass of particles sizes. Percentage of soil sizes can be defined as the mass of soil retained on each sieve divided by total mass of soil sample. The percentage for a certain sieve size is defined as 100% minus the total percentage of all soil retained on the sieve. The percentage graph vs. sieve size is drawn on the semi-logarithm to obtain the soil grading curve. From the particle distribution graph‚ particles size like D10‚ D30‚ and D60 can be
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wear so found out it’s reported as Los Angeles abrasion value. APPARATUS 1. Los Angeles Abrasion Testing Machine 2. Balance: a balance having a capacity of at least 5500 g sensitive to 0.1 g or less. 3. Sieves: No. 4 and No. 12 woven wire sieves conforming to AASHTO M 92. These sieves should be at least 12 in. in diameter. PROCEDURE 1. Place the test specimen and abrasive charge in the Los Angeles Abrasive Testing Machine and close the opening with the dust-tight cover. 2. Start the
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Balance‚ sensitive to within 0.1% of the weight of the sample to be tested Standard sieves for grading of fine aggregates- 4.75 mm‚ 2.36 mm‚ 1.18 mm‚ 300m‚ 150m (# 4‚ 8‚ 16‚ 50 and 100) Standard sieves for grading coarse aggregates- 1 ½ in.‚ 1 in.‚ ¾ in.‚ ½ ‚ 3/8 in.‚ 4 in‚ plus a 4.75 mm(#4 sieve) Fine (0.5 Kg) and coarse (2 to 20 Kg depending on maximum size from 9.5mm to 50 mm (3/8 to 2 in.)) aggregate samples. Sieve shaker supplied in lab Test Procedure For samples we use the dry aggregates
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The Enlightenment was a period of individualism‚ science‚ rationalism‚ and of the human right ’ to govern nature. Poets and authors focused on creating perfect pieces of literature‚ and hoped that by some means their work would be considered sublime ’. With the coming of the Industrial Revolution and the age of Romanticism‚ several poets such as Blake‚ Wordsworth‚ and Coleridge sought the sublime ’ within the realms of nature. The Romantics began to create a new model of poetry through focusing
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.............5 4.4 Prepare Sieve Analysis Data Sheet ..........................................................................5 TEST PROCEDURE ...........................................................................................................6 5.1 Initial Separation of the Plus and Minus 1/4 in. (6.3 mm) Particles ........................6 5.2 Weigh the Plus 1/4 in. (6.3 mm) Portion of the Sample ..........................................6 5.3 Sieve the Plus 1/4 in. (6.3 mm) Material
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