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Robert Wilhelm Eberhard Bunsen (German: [ˈʁoːbɛʁt ˈbʊnzn̩]; 30 March 1811 [a] – 16 August 1899) was a German chemist.He investigated emission spectra of heated elements, and discovered caesium (in 1860) and rubidium (in 1861) with the physicist Gustav Kirchhoff. [11]
Rubidium chloride (RbCl) is probably the most used rubidium compound: among several other chlorides, it is used to induce living cells to take up DNA; it is also used as a biomarker, because in nature, it is found only in small quantities in living organisms and when present, replaces potassium.
Various folk cultures and traditions assign symbolic meanings to plants. Although these are no longer commonly understood by populations that are increasingly divorced from their rural traditions, some meanings survive. In addition, these meanings are alluded to in older pictures, songs and writings.
The first instrumental analysis was flame emissive spectrometry developed by Robert Bunsen and Gustav Kirchhoff who discovered rubidium (Rb) and caesium (Cs) in 1860. [4] Most of the major developments in analytical chemistry took place after 1900. During this period, instrumental analysis became progressively dominant in the field.
They consist of several to many flowers, found at both the ends of branches and in the leaf axils. The flowers appear from August to September, followed by small (4–6 mm diameter) red to black berries from October to November. [2] The roots can be over 1 m long, up to 12 mm thick. It prefers loamy soils with a constant level of moisture.
Tripidium bengalense, synonym Saccharum bengalense, [1] with the common names munj sweetcane, [2] baruwa sugarcane or baruwa grass, is a plant of the genus Tripidium native to Iran, Afghanistan, Pakistan, Northern India, Nepal, Bangladesh and Myanmar.
Nepenthes khasiana is a protected species, classified as endangered, [1] and is listed under CITES Appendix I meaning commercial international trade is prohibited. [2] Threats to wild populations include habitat destruction , acid mine drainage associated with coal mining , and collection for medicinal and ornamental uses.
Adina cordifolia, synonym Haldina cordifolia, is a flowering plant in the family Rubiaceae. It is native to southern Asia, from India east to China and Vietnam and south to Peninsular Malaysia. [1] Adina cordifolia is a deciduous tree that can grow well over 20 metres high.