The three-cup anemometer was further modified by the Australian Derek Weston in 1991 to measure both wind direction and wind speed. Weston added a tag to one cup, which causes the cupwheel speed to increase and decrease as the tag moves alternately with and against the wind.
A A. There are certain restrictions when it comes to borrowing money from your Roth IRA. While you can't take out a loan from your Roth IRA like you can with other retirement accounts such as a 401(k), you may withdraw funds for short periods of time. The withdrawal of these funds are tax-free, penalty-free and interest-free, according to Bible Money Matters.
You invest pre-tax earnings in an IRA and your investment grows on a tax-deferred basis. You can use IRA funds to buy almost any kind of investment including an annuity. Under federal tax laws, you must begin making annual withdrawals from your IRAs once you reach the age of 70 1/2. The size of the withdrawals depends on your life expectancy and the balance of your IRA accounts.